# extraction_runs

provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:49:22
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Nigeria",
    "currency": "NGN",
    "denomination": "20",
    "series_year": null,
    "series_name": "Second Naira series",
    "series_range": "1984–1991",
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Nigerian Pound",
    "successor_currency": null,

    "issuer": "Central Bank of Nigeria",
    "issuer_native": null,
    "signatures": "Governor: signature visible; Director of Domestic Operations: signature visible",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "151x78",
    "watermark": "Coat of arms visible in clear field at left on front",
    "security_features": "watermark,intaglio,microprint",
    "color_palette": "#2e5f5f,#d4a574,#8b4513",

    "portrait_subject": "Herbert Macaulay",
    "reverse_subject": "Herbert Macaulay",
    "themes": "statesman,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-26",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Nigerian coat of arms at center right showing the eagle with two white horses as supporters and the motto 'UNITY AND FAITH' on a ribbon below. The coat of arms was adopted in 1960 at independence and represents the strength and unity of the Nigerian nation. The shield depicts the meeting of Nigeria's two main rivers, the Niger and Benue, forming a Y-shape.",
    "back_description": "Herbert Macaulay (1864–1946), Nigerian nationalist, politician and engineer, known as the 'Father of Nigerian Nationalism'. He founded Nigeria's first political party, the Nigerian National Democratic Party (NNDP) in 1923, and was a leading advocate for Nigerian independence from British colonial rule. He worked tirelessly for self-governance and social reform until his death.",
    "historical_notes": "This note belongs to the Second Naira series issued by the Central Bank of Nigeria from 1984 to 1991. The naira was introduced in 1973, replacing the Nigerian pound at 2 naira = 1 pound. This series was withdrawn and demonetized in 1991 as part of anti-corruption measures. Herbert Macaulay appears on both the front (in watermark area, implied by design convention) and back. The serial number format 'B/OO COO C 43 986886' follows the Central Bank of Nigeria's standard prefix/suffix system of the period, though no documented serial-year encoding is known for this issuer.",
    "language_script": "Latin, Arabic",
    "languages": "en,ar",

    "serial_number": "B/OOCOO C 43 986886",
    "serial_prefix": "B/OOCOO C",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Moderate circulation wear visible, corners showing softening, paper retains reasonable integrity with some soiling",

    "estimated_value_low": 5,
    "estimated_value_high": 15,
    "value_currency": "USD",

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.9,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 1.0,
      "signatures": 0.6,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.85,
      "watermark": 0.85,
      "portrait_subject": 0.95,
      "reverse_subject": 0.95,
      "pick_number": 0.95,
      "serial_number": 0.8,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.9,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.88,
    "flags": ["blurry"]
  }
  ```

parsed_json:
  {"country": "Nigeria", "currency": "NGN", "denomination": "20", "series_year": null, "series_name": "Second Naira series", "series_range": "1984\u20131991", "issue_year": null, "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Nigerian Pound", "successor_currency": null, "issuer": "Central Bank of Nigeria", "issuer_native": null, "signatures": "Governor: signature visible; Director of Domestic Operations: signature visible", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "151x78", "watermark": "Coat of arms visible in clear field at left on front", "security_features": "watermark,intaglio,microprint", "color_palette": "#2e5f5f,#d4a574,#8b4513", "portrait_subject": "Herbert Macaulay", "reverse_subject": "Herbert Macaulay", "themes": "statesman,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-26", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Nigerian coat of arms at center right showing the eagle with two white horses as supporters and the motto 'UNITY AND FAITH' on a ribbon below. The coat of arms was adopted in 1960 at independence and represents the strength and unity of the Nigerian nation. The shield depicts the meeting of Nigeria's two main rivers, the Niger and Benue, forming a Y-shape.", "back_description": "Herbert Macaulay (1864\u20131946), Nigerian nationalist, politician and engineer, known as the 'Father of Nigerian Nationalism'. He founded Nigeria's first political party, the Nigerian National Democratic Party (NNDP) in 1923, and was a leading advocate for Nigerian independence from British colonial rule. He worked tirelessly for self-governance and social reform until his death.", "historical_notes": "This note belongs to the Second Naira series issued by the Central Bank of Nigeria from 1984 to 1991. The naira was introduced in 1973, replacing the Nigerian pound at 2 naira = 1 pound. This series was withdrawn and demonetized in 1991 as part of anti-corruption measures. Herbert Macaulay appears on both the front (in watermark area, implied by design convention) and back. The serial number format 'B/OO COO C 43 986886' follows the Central Bank of Nigeria's standard prefix/suffix system of the period, though no documented serial-year encoding is known for this issuer.", "language_script": "Latin, Arabic", "languages": "en,ar", "serial_number": "B/OOCOO C 43 986886", "serial_prefix": "B/OOCOO C", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Moderate circulation wear visible, corners showing softening, paper retains reasonable integrity with some soiling", "estimated_value_low": 5, "estimated_value_high": 15, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.9, "series_year": 0.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.6, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.85, "portrait_subject": 0.95, "reverse_subject": 0.95, "pick_number": 0.95, "serial_number": 0.8, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.85}, "overall_confidence": 0.88, "flags": ["blurry"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.9, "series_year": 0.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.6, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.85, "portrait_subject": 0.95, "reverse_subject": 0.95, "pick_number": 0.95, "serial_number": 0.8, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:49:25
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Nigeria",
    "currency": "NGN",
    "denomination": "50 Kobo",
    "series_year": null,
    "series_name": null,
    "series_range": "1973–1984",
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": null,
    "predecessor_currency": "Nigerian pound",
    "successor_currency": null,
    "issuer": "Central Bank of Nigeria",
    "issuer_native": null,
    "signatures": "Governor: signature present but name illegible; Director: signature present but name illegible",
    "printer": "Nigerian Security Printing and Minting Company",
    "engraver": null,
    "material": "paper",
    "dimensions_mm": "151x77",
    "watermark": "Coat of arms of Nigeria in clear field at left center",
    "security_features": "watermark,intaglio,microprint",
    "color_palette": "#8b4513,#f5deb3,#a0522d",
    "portrait_subject": "Alvan Ikoku",
    "reverse_subject": "Traditional Nigerian agriculture scene with workers harvesting",
    "themes": "statesman,agriculture,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": "P-14c",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",
    "front_description": "Traditional Nigerian agricultural scene depicting workers harvesting and processing crops, likely yams or similar staple food. The scene represents Nigeria's agricultural economy in the post-independence era, emphasizing the importance of farming to the nation's economy and food security. Three workers are shown engaged in crop processing near a waterway with palm trees in the background.",
    "back_description": "Alvan Ikoku (1900–1971), Nigerian educationist, statesman, and nationalist who served as a federal minister and was a prominent figure in Nigeria's independence movement. He was a strong advocate for educational reform and modernization in Nigeria, serving as Minister of Education in the Eastern Region and later as a federal minister. His portrait honors his contributions to Nigerian education and political development in the critical years surrounding independence.",
    "historical_notes": "This note belongs to the first decimal currency series issued by the Central Bank of Nigeria following decimalization in 1973, when Nigeria replaced the Nigerian pound with the naira and kobo (100 kobo = 1 naira). The 50 kobo denomination was part of the initial decimal series that circulated from 1973 through the mid-1980s. The serial prefix 'B/34' indicates a specific print run within the series. Alvan Ikoku was chosen to appear on this denomination as part of the Central Bank's policy of honoring significant Nigerian figures from various regions and backgrounds. This series was eventually replaced by coins for smaller denominations and redesigned banknotes. The note features traditional Nigerian geometric patterns in the borders, reflecting indigenous artistic heritage. The agricultural scene on the front emphasizes Nigeria's economic foundation in farming, particularly in the staple food crops that sustained the population.",
    "language_script": "Latin script on front; Latin and Arabic script on back",
    "languages": "en,ar",
    "serial_number": "B/34 771025",
    "serial_prefix": "B/34",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,
    "condition_grade": "VF",
    "condition_notes": "Note shows circulation wear with visible creasing and some soiling in center. Colors remain relatively strong. No tears visible but some handling marks present.",
    "estimated_value_low": 2,
    "estimated_value_high": 8,
    "value_currency": "USD",
    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.3,
      "series_year": 0.5,
      "issue_year": 0.4,
      "issuer": 1.0,
      "signatures": 0.4,
      "printer": 0.75,
      "material": 1.0,
      "dimensions_mm": 0.85,
      "watermark": 0.9,
      "portrait_subject": 1.0,
      "reverse_subject": 0.85,
      "pick_number": 0.9,
      "serial_number": 1.0,
      "front_description": 0.85,
      "back_description": 0.95,
      "historical_notes": 0.85,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.85,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Nigeria", "currency": "NGN", "denomination": "50 Kobo", "series_year": null, "series_name": null, "series_range": "1973\u20131984", "issue_year": null, "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": null, "predecessor_currency": "Nigerian pound", "successor_currency": null, "issuer": "Central Bank of Nigeria", "issuer_native": null, "signatures": "Governor: signature present but name illegible; Director: signature present but name illegible", "printer": "Nigerian Security Printing and Minting Company", "engraver": null, "material": "paper", "dimensions_mm": "151x77", "watermark": "Coat of arms of Nigeria in clear field at left center", "security_features": "watermark,intaglio,microprint", "color_palette": "#8b4513,#f5deb3,#a0522d", "portrait_subject": "Alvan Ikoku", "reverse_subject": "Traditional Nigerian agriculture scene with workers harvesting", "themes": "statesman,agriculture,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-14c", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Traditional Nigerian agricultural scene depicting workers harvesting and processing crops, likely yams or similar staple food. The scene represents Nigeria's agricultural economy in the post-independence era, emphasizing the importance of farming to the nation's economy and food security. Three workers are shown engaged in crop processing near a waterway with palm trees in the background.", "back_description": "Alvan Ikoku (1900\u20131971), Nigerian educationist, statesman, and nationalist who served as a federal minister and was a prominent figure in Nigeria's independence movement. He was a strong advocate for educational reform and modernization in Nigeria, serving as Minister of Education in the Eastern Region and later as a federal minister. His portrait honors his contributions to Nigerian education and political development in the critical years surrounding independence.", "historical_notes": "This note belongs to the first decimal currency series issued by the Central Bank of Nigeria following decimalization in 1973, when Nigeria replaced the Nigerian pound with the naira and kobo (100 kobo = 1 naira). The 50 kobo denomination was part of the initial decimal series that circulated from 1973 through the mid-1980s. The serial prefix 'B/34' indicates a specific print run within the series. Alvan Ikoku was chosen to appear on this denomination as part of the Central Bank's policy of honoring significant Nigerian figures from various regions and backgrounds. This series was eventually replaced by coins for smaller denominations and redesigned banknotes. The note features traditional Nigerian geometric patterns in the borders, reflecting indigenous artistic heritage. The agricultural scene on the front emphasizes Nigeria's economic foundation in farming, particularly in the staple food crops that sustained the population.", "language_script": "Latin script on front; Latin and Arabic script on back", "languages": "en,ar", "serial_number": "B/34 771025", "serial_prefix": "B/34", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows circulation wear with visible creasing and some soiling in center. Colors remain relatively strong. No tears visible but some handling marks present.", "estimated_value_low": 2, "estimated_value_high": 8, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.3, "series_year": 0.5, "issue_year": 0.4, "issuer": 1.0, "signatures": 0.4, "printer": 0.75, "material": 1.0, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 0.85, "pick_number": 0.9, "serial_number": 1.0, "front_description": 0.85, "back_description": 0.95, "historical_notes": 0.85, "condition_grade": 0.8}, "overall_confidence": 0.85, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.3, "series_year": 0.5, "issue_year": 0.4, "issuer": 1.0, "signatures": 0.4, "printer": 0.75, "material": 1.0, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 0.85, "pick_number": 0.9, "serial_number": 1.0, "front_description": 0.85, "back_description": 0.95, "historical_notes": 0.85, "condition_grade": 0.8}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:49:26
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Nigeria",
    "currency": "NGN",
    "denomination": "1",
    "series_year": null,
    "series_name": "Second series",
    "series_range": "1984–present",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": null,
    "predecessor_currency": "Nigerian pound",
    "successor_currency": null,

    "issuer": "Central Bank of Nigeria",
    "issuer_native": null,
    "signatures": "Governor: [illegible]; Chief of Banking Operations: [illegible]",
    "printer": "Nigerian Security Printing and Minting Company",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "151x78",
    "watermark": "Portrait of youth in clear field at left",
    "security_features": "thread,microprint,intaglio",
    "color_palette": "#8b4513,#d2b48c,#a0522d",

    "portrait_subject": "Young Nigerian person (representative portrait)",
    "reverse_subject": "Central Bank of Nigeria headquarters building in Lagos",
    "themes": "indigenous_culture,architecture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-23",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Representative portrait of a young Nigerian person with traditional facial marks (tribal scarification), symbolizing Nigeria's diverse ethnic heritage. The note features the denomination 'ONE NAIRA' prominently displayed, with the Nigerian coat of arms at lower center showing two horses supporting a black shield with a white wavy band (representing the Niger River), topped by an eagle. The design emphasizes national identity and cultural pride through indigenous representation.",

    "back_description": "Central Bank of Nigeria headquarters building in Lagos, the modernist structure designed in the Brutalist architectural style and completed in the 1970s. The multi-story building, featuring characteristic horizontal lines of windows and concrete construction, served as the institution's main office during the period when Lagos was Nigeria's capital. Arabic script appears at center right, reflecting Nigeria's bilingual heritage (English and Hausa in Arabic script). The building represents the country's financial sovereignty and modern development.",

    "historical_notes": "This is part of Nigeria's second series of naira banknotes, introduced in 1984 following the first series issued in 1973 when Nigeria decimalized its currency (replacing the Nigerian pound with the naira at 2:1). The 1 naira note remained in circulation for decades as a workhorse denomination. The Central Bank of Nigeria was established in 1958, two years before independence, and moved to its Lagos headquarters shown on this note. The serial prefix 'DD/24' indicates a specific print run and series within the broader issue period. This design type with the youthful portrait and CBN building remained standard throughout the 1980s and 1990s until polymer notes were introduced for some denominations. The note is now withdrawn from active circulation but was demonetized only recently as Nigeria phases out lower-denomination notes due to inflation.",

    "language_script": "Latin, Arabic",
    "languages": "en,ha",

    "serial_number": "DD/24 487359",
    "serial_prefix": "DD/24",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Moderate circulation with visible creasing, slightly soiled surfaces, and some edge wear. Note remains intact with clear imagery.",

    "estimated_value_low": 1,
    "estimated_value_high": 3,
    "value_currency": "USD",

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.85,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 1.0,
      "signatures": 0.3,
      "printer": 0.8,
      "material": 0.95,
      "dimensions_mm": 0.9,
      "watermark": 0.85,
      "portrait_subject": 0.75,
      "reverse_subject": 0.95,
      "pick_number": 0.9,
      "serial_number": 1.0,
      "front_description": 0.85,
      "back_description": 0.9,
      "historical_notes": 0.85,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.85,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Nigeria", "currency": "NGN", "denomination": "1", "series_year": null, "series_name": "Second series", "series_range": "1984\u2013present", "issue_year": null, "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": null, "predecessor_currency": "Nigerian pound", "successor_currency": null, "issuer": "Central Bank of Nigeria", "issuer_native": null, "signatures": "Governor: [illegible]; Chief of Banking Operations: [illegible]", "printer": "Nigerian Security Printing and Minting Company", "engraver": null, "material": "paper", "dimensions_mm": "151x78", "watermark": "Portrait of youth in clear field at left", "security_features": "thread,microprint,intaglio", "color_palette": "#8b4513,#d2b48c,#a0522d", "portrait_subject": "Young Nigerian person (representative portrait)", "reverse_subject": "Central Bank of Nigeria headquarters building in Lagos", "themes": "indigenous_culture,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-23", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Representative portrait of a young Nigerian person with traditional facial marks (tribal scarification), symbolizing Nigeria's diverse ethnic heritage. The note features the denomination 'ONE NAIRA' prominently displayed, with the Nigerian coat of arms at lower center showing two horses supporting a black shield with a white wavy band (representing the Niger River), topped by an eagle. The design emphasizes national identity and cultural pride through indigenous representation.", "back_description": "Central Bank of Nigeria headquarters building in Lagos, the modernist structure designed in the Brutalist architectural style and completed in the 1970s. The multi-story building, featuring characteristic horizontal lines of windows and concrete construction, served as the institution's main office during the period when Lagos was Nigeria's capital. Arabic script appears at center right, reflecting Nigeria's bilingual heritage (English and Hausa in Arabic script). The building represents the country's financial sovereignty and modern development.", "historical_notes": "This is part of Nigeria's second series of naira banknotes, introduced in 1984 following the first series issued in 1973 when Nigeria decimalized its currency (replacing the Nigerian pound with the naira at 2:1). The 1 naira note remained in circulation for decades as a workhorse denomination. The Central Bank of Nigeria was established in 1958, two years before independence, and moved to its Lagos headquarters shown on this note. The serial prefix 'DD/24' indicates a specific print run and series within the broader issue period. This design type with the youthful portrait and CBN building remained standard throughout the 1980s and 1990s until polymer notes were introduced for some denominations. The note is now withdrawn from active circulation but was demonetized only recently as Nigeria phases out lower-denomination notes due to inflation.", "language_script": "Latin, Arabic", "languages": "en,ha", "serial_number": "DD/24 487359", "serial_prefix": "DD/24", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Moderate circulation with visible creasing, slightly soiled surfaces, and some edge wear. Note remains intact with clear imagery.", "estimated_value_low": 1, "estimated_value_high": 3, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.85, "series_year": 0.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.3, "printer": 0.8, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.85, "portrait_subject": 0.75, "reverse_subject": 0.95, "pick_number": 0.9, "serial_number": 1.0, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.85}, "overall_confidence": 0.85, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.85, "series_year": 0.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.3, "printer": 0.8, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.85, "portrait_subject": 0.75, "reverse_subject": 0.95, "pick_number": 0.9, "serial_number": 1.0, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:49:48
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Nigeria",
    "currency": "NGN",
    "denomination": "20",
    "series_year": null,
    "series_name": "Third series",
    "series_range": "1984-2001",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "2001",
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "Central Bank of Nigeria",
    "issuer_native": null,
    "signatures": "Governor: signed; Director of Domestic Operations: signed",
    "printer": "Nigerian Security Printing and Minting Company",
    "engraver": null,
    "material": "paper",
    "dimensions_mm": "151x78",
    "watermark": "General Murtala Muhammed portrait in clear field at right",
    "security_features": "watermark,intaglio,microprint",
    "color_palette": "#8b7355,#2f4f4f,#556b2f",
    "portrait_subject": "General Murtala Muhammed",
    "reverse_subject": "General Murtala Muhammed",
    "themes": "military,statesman",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": "26",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",
    "front_description": "General Murtala Ramat Muhammed (1938-1976), Nigerian military ruler who served as Head of State from July 1975 until his assassination in February 1976. He initiated major government reforms, including the relocation of the federal capital from Lagos to Abuja, and is remembered as a decisive and populist leader who fought corruption. The front features decorative geometric patterns and the denomination 'TEN NAIRA' (note: image shows ₦10 denomination on front while back shows ₦20, indicating a mismatched pair). Arabic script appears alongside English inscriptions.",
    "back_description": "General Murtala Ramat Muhammed (1938-1976) in military uniform with service decorations. The portrait shows him in formal military dress with medals and insignia. The Central Bank of Nigeria headquarters building appears faintly rendered in the background on the right side. The denomination 'TWENTY NAIRA' is prominently displayed along with the Central Bank of Nigeria name in both English and Arabic script. Serial number A/58 192150 is visible at upper right.",
    "historical_notes": "This note belongs to Nigeria's third currency series issued by the Central Bank of Nigeria from 1984 through 2001. The series honours General Murtala Muhammed, who though his tenure lasted only seven months before his assassination in an attempted coup, became one of Nigeria's most celebrated leaders for his anti-corruption stance, administrative reforms, and nationalist foreign policy. All denominations in this series featured his portrait. The series was gradually withdrawn starting in the late 1990s and replaced by a new design series beginning in 2001. The visible signature appears to be from the 1990s governorship period. NOTE: The images show a mismatched pair - the front displays a ₦10 note while the back shows a ₦20 note. Both feature Murtala Muhammed but are from different denominations within the same series.",
    "language_script": "Latin and Arabic",
    "languages": "en,ar",
    "serial_number": "A/58192150",
    "serial_prefix": "A/58",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,
    "condition_grade": "VF",
    "condition_notes": "Circulated note with visible folds, creases, and some discoloration. Paper shows wear consistent with circulation. Back appears in better condition than front.",
    "estimated_value_low": 2,
    "estimated_value_high": 8,
    "value_currency": "USD",
    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 0.5,
      "series_name": 0.95,
      "series_year": 0.85,
      "issue_year": 0.7,
      "issuer": 1.0,
      "signatures": 0.6,
      "printer": 0.85,
      "material": 1.0,
      "dimensions_mm": 0.9,
      "watermark": 0.95,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "pick_number": 0.8,
      "serial_number": 0.95,
      "front_description": 0.85,
      "back_description": 0.95,
      "historical_notes": 0.9,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.65,
    "flags": ["mismatched_pair", "blurry"]
  }
  ```

parsed_json:
  {"country": "Nigeria", "currency": "NGN", "denomination": "20", "series_year": null, "series_name": "Third series", "series_range": "1984-2001", "issue_year": null, "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "2001", "predecessor_currency": null, "successor_currency": null, "issuer": "Central Bank of Nigeria", "issuer_native": null, "signatures": "Governor: signed; Director of Domestic Operations: signed", "printer": "Nigerian Security Printing and Minting Company", "engraver": null, "material": "paper", "dimensions_mm": "151x78", "watermark": "General Murtala Muhammed portrait in clear field at right", "security_features": "watermark,intaglio,microprint", "color_palette": "#8b7355,#2f4f4f,#556b2f", "portrait_subject": "General Murtala Muhammed", "reverse_subject": "General Murtala Muhammed", "themes": "military,statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": "26", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "General Murtala Ramat Muhammed (1938-1976), Nigerian military ruler who served as Head of State from July 1975 until his assassination in February 1976. He initiated major government reforms, including the relocation of the federal capital from Lagos to Abuja, and is remembered as a decisive and populist leader who fought corruption. The front features decorative geometric patterns and the denomination 'TEN NAIRA' (note: image shows \u20a610 denomination on front while back shows \u20a620, indicating a mismatched pair). Arabic script appears alongside English inscriptions.", "back_description": "General Murtala Ramat Muhammed (1938-1976) in military uniform with service decorations. The portrait shows him in formal military dress with medals and insignia. The Central Bank of Nigeria headquarters building appears faintly rendered in the background on the right side. The denomination 'TWENTY NAIRA' is prominently displayed along with the Central Bank of Nigeria name in both English and Arabic script. Serial number A/58 192150 is visible at upper right.", "historical_notes": "This note belongs to Nigeria's third currency series issued by the Central Bank of Nigeria from 1984 through 2001. The series honours General Murtala Muhammed, who though his tenure lasted only seven months before his assassination in an attempted coup, became one of Nigeria's most celebrated leaders for his anti-corruption stance, administrative reforms, and nationalist foreign policy. All denominations in this series featured his portrait. The series was gradually withdrawn starting in the late 1990s and replaced by a new design series beginning in 2001. The visible signature appears to be from the 1990s governorship period. NOTE: The images show a mismatched pair - the front displays a \u20a610 note while the back shows a \u20a620 note. Both feature Murtala Muhammed but are from different denominations within the same series.", "language_script": "Latin and Arabic", "languages": "en,ar", "serial_number": "A/58192150", "serial_prefix": "A/58", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Circulated note with visible folds, creases, and some discoloration. Paper shows wear consistent with circulation. Back appears in better condition than front.", "estimated_value_low": 2, "estimated_value_high": 8, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 0.5, "series_name": 0.95, "series_year": 0.85, "issue_year": 0.7, "issuer": 1.0, "signatures": 0.6, "printer": 0.85, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.95, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.8, "serial_number": 0.95, "front_description": 0.85, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.85}, "overall_confidence": 0.65, "flags": ["mismatched_pair", "blurry"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 0.5, "series_name": 0.95, "series_year": 0.85, "issue_year": 0.7, "issuer": 1.0, "signatures": 0.6, "printer": 0.85, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.95, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.8, "serial_number": 0.95, "front_description": 0.85, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.85}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 06:49:48
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Nigeria",
    "currency": "NGN",
    "denomination": "20",
    "series_year": null,
    "series_name": null,
    "series_range": "1977–2001",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": "2001",
    "predecessor_currency": "Nigerian pound",
    "successor_currency": null,

    "issuer": "Central Bank of Nigeria",
    "issuer_native": null,
    "signatures": "Governor: Ahmed; Director of Domestic Operations: illegible",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "151x78",
    "watermark": "Portrait of General Murtala Muhammed",
    "security_features": "thread,intaglio,microprint",
    "color_palette": "#2d5a3d,#4a7c59,#8fbc8f",

    "portrait_subject": "General Murtala Ramat Muhammed",
    "reverse_subject": null,
    "themes": "statesman,military",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-26",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "General Murtala Ramat Muhammed (1938–1976), Nigerian military leader and Head of State from July 1975 until his assassination in February 1976. He led a bloodless coup against General Yakubu Gowon and initiated significant reforms including reducing the civil service and planning the relocation of the capital to Abuja. His brief but impactful rule made him a national hero, and he appears on Nigerian currency as a symbol of integrity and reform. The note includes text 'GENERAL MURTALA R. MUHAMMED 1938-1976' beneath his portrait, along with Arabic script denomination and traditional Nigerian geometric patterns.",

    "back_description": "This image shows women engaged in traditional crafts - one carrying water and another working, representing Nigerian cultural heritage and daily life. Traditional geometric patterns frame the scene.",

    "historical_notes": "IMPORTANT: These images show TWO DIFFERENT Nigerian banknotes - a 20 Naira note (green, with Murtala Muhammed portrait) and a 10 Naira note (red/brown, showing traditional scenes). The 20 Naira note featuring General Murtala Muhammed was first introduced in 1977 and went through several signature varieties. The serial number A/58 192150 is visible. Ahmed served as Governor of the Central Bank of Nigeria in the 1980s-1990s. The Naira was introduced on 1 January 1973, replacing the Nigerian pound at a rate of 2 Naira = 1 pound. This older paper series was eventually replaced by polymer notes in the 2000s.",

    "language_script": "Latin,Arabic",
    "languages": "en,ar",

    "serial_number": "A/58 192150",
    "serial_prefix": "A/58",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "F",
    "condition_notes": "Moderate circulation wear, visible folds and creases, some soiling, paper still intact with clear imagery",

    "estimated_value_low": 2,
    "estimated_value_high": 8,
    "value_currency": "USD",

    "field_confidence": {
      "country": 0.98,
      "currency": 0.98,
      "denomination": 0.95,
      "series_name": 0.4,
      "series_year": 0.5,
      "issue_year": 0.4,
      "issuer": 0.98,
      "signatures": 0.6,
      "printer": 0.3,
      "material": 0.95,
      "dimensions_mm": 0.7,
      "watermark": 0.75,
      "portrait_subject": 0.95,
      "reverse_subject": 0.5,
      "pick_number": 0.7,
      "serial_number": 0.95,
      "front_description": 0.85,
      "back_description": 0.6,
      "historical_notes": 0.8,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.55,
    "flags": ["mismatched_pair", "blurry"]
  }
  ```

parsed_json:
  {"country": "Nigeria", "currency": "NGN", "denomination": "20", "series_year": null, "series_name": null, "series_range": "1977\u20132001", "issue_year": null, "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": "2001", "predecessor_currency": "Nigerian pound", "successor_currency": null, "issuer": "Central Bank of Nigeria", "issuer_native": null, "signatures": "Governor: Ahmed; Director of Domestic Operations: illegible", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "151x78", "watermark": "Portrait of General Murtala Muhammed", "security_features": "thread,intaglio,microprint", "color_palette": "#2d5a3d,#4a7c59,#8fbc8f", "portrait_subject": "General Murtala Ramat Muhammed", "reverse_subject": null, "themes": "statesman,military", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-26", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "General Murtala Ramat Muhammed (1938\u20131976), Nigerian military leader and Head of State from July 1975 until his assassination in February 1976. He led a bloodless coup against General Yakubu Gowon and initiated significant reforms including reducing the civil service and planning the relocation of the capital to Abuja. His brief but impactful rule made him a national hero, and he appears on Nigerian currency as a symbol of integrity and reform. The note includes text 'GENERAL MURTALA R. MUHAMMED 1938-1976' beneath his portrait, along with Arabic script denomination and traditional Nigerian geometric patterns.", "back_description": "This image shows women engaged in traditional crafts - one carrying water and another working, representing Nigerian cultural heritage and daily life. Traditional geometric patterns frame the scene.", "historical_notes": "IMPORTANT: These images show TWO DIFFERENT Nigerian banknotes - a 20 Naira note (green, with Murtala Muhammed portrait) and a 10 Naira note (red/brown, showing traditional scenes). The 20 Naira note featuring General Murtala Muhammed was first introduced in 1977 and went through several signature varieties. The serial number A/58 192150 is visible. Ahmed served as Governor of the Central Bank of Nigeria in the 1980s-1990s. The Naira was introduced on 1 January 1973, replacing the Nigerian pound at a rate of 2 Naira = 1 pound. This older paper series was eventually replaced by polymer notes in the 2000s.", "language_script": "Latin,Arabic", "languages": "en,ar", "serial_number": "A/58 192150", "serial_prefix": "A/58", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Moderate circulation wear, visible folds and creases, some soiling, paper still intact with clear imagery", "estimated_value_low": 2, "estimated_value_high": 8, "value_currency": "USD", "field_confidence": {"country": 0.98, "currency": 0.98, "denomination": 0.95, "series_name": 0.4, "series_year": 0.5, "issue_year": 0.4, "issuer": 0.98, "signatures": 0.6, "printer": 0.3, "material": 0.95, "dimensions_mm": 0.7, "watermark": 0.75, "portrait_subject": 0.95, "reverse_subject": 0.5, "pick_number": 0.7, "serial_number": 0.95, "front_description": 0.85, "back_description": 0.6, "historical_notes": 0.8, "condition_grade": 0.8}, "overall_confidence": 0.55, "flags": ["mismatched_pair", "blurry"]}

field_confidence:
  {"country": 0.98, "currency": 0.98, "denomination": 0.95, "series_name": 0.4, "series_year": 0.5, "issue_year": 0.4, "issuer": 0.98, "signatures": 0.6, "printer": 0.3, "material": 0.95, "dimensions_mm": 0.7, "watermark": 0.75, "portrait_subject": 0.95, "reverse_subject": 0.5, "pick_number": 0.7, "serial_number": 0.95, "front_description": 0.85, "back_description": 0.6, "historical_notes": 0.8, "condition_grade": 0.8}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:50:09
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Nigeria",
    "currency": "NGN",
    "denomination": "1 Naira",
    "series_year": null,
    "series_name": "Second series",
    "series_range": "1984-present",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": "2007",
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "Central Bank of Nigeria",
    "issuer_native": null,
    "signatures": "Governor: Abdulkadir Ahmed; Director of Currency Operations: [signature present]",
    "printer": "Nigerian Security Printing and Minting Company",
    "engraver": null,
    "material": "paper",
    "dimensions_mm": "151x78",
    "watermark": "Coat of arms of Nigeria in clear field at right",
    "security_features": "watermark,intaglio,microprint",
    "color_palette": "#8b4545,#f5deb3,#2f4f2f",
    "portrait_subject": null,
    "reverse_subject": "General Murtala Ramat Mohammed",
    "themes": "military,statesman,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": "P-20",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",
    "front_description": "Traditional Nigerian village scene depicting two figures carrying loads on their heads in front of thatched-roof huts, representing daily life and agricultural activities in rural Nigeria. This design emphasizes the cultural heritage and traditional lifestyle of Nigerian communities. The circular watermark area at left shows the national coat of arms featuring the black shield with wavy white bands representing the Niger and Benue rivers, supported by two horses, with the eagle of strength above. The denomination 'ONE NAIRA' appears at bottom, with decorative guilloche patterns throughout.",
    "back_description": "General Murtala Ramat Mohammed (1938–1976), Nigerian military officer who served as Head of State from July 1975 until his assassination in February 1976. During his brief tenure, Mohammed initiated major reforms including the purging of corrupt officials, the relocation of the federal capital to Abuja, and the creation of new states. He is remembered as one of Nigeria's most decisive and reform-minded leaders. His portrait appears at left, with Arabic script (عشرون نيرا) meaning 'Twenty Naira' visible in decorative panel at center-right. The serial number B/28 861858 appears at top right.",
    "historical_notes": "This 1 Naira note belongs to the second series of Nigerian banknotes issued by the Central Bank of Nigeria, introduced in 1984 following the military government's currency reforms. The series maintained the Naira and Kobo denominations established in 1973 when Nigeria decimalized its currency. The front depicts traditional Nigerian village life, emphasizing the nation's cultural roots and agricultural heritage. The back features General Murtala Mohammed, whose short-lived but impactful administration (July 1975 – February 1976) is widely regarded as a transformative period in Nigerian history. Mohammed's portrait was added to Nigerian currency to honor his legacy of anti-corruption measures and national development initiatives. This note was officially withdrawn from circulation in 2007 when polymer notes were introduced for lower denominations, though it remained legal tender for exchange. The serial format with prefix B/28 indicates this is from a later print run within the series. No known public serial-year encoding identified for this issuer.",
    "language_script": "Latin, Arabic",
    "languages": "en,ar",
    "serial_number": "B/28 861858",
    "serial_prefix": "B/28",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,
    "condition_grade": "VF",
    "condition_notes": "Note shows moderate circulation with some soiling, surface wear, and light staining. Colors remain relatively vibrant. No tears visible but corners show minor rounding.",
    "estimated_value_low": 2,
    "estimated_value_high": 8,
    "value_currency": "USD",
    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 0.95,
      "series_name": 0.85,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 1.0,
      "signatures": 0.75,
      "printer": 0.8,
      "material": 0.95,
      "dimensions_mm": 0.85,
      "watermark": 0.9,
      "portrait_subject": 0.0,
      "reverse_subject": 1.0,
      "pick_number": 0.7,
      "serial_number": 1.0,
      "front_description": 0.85,
      "back_description": 0.95,
      "historical_notes": 0.85,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.85,
    "flags": [
      "mismatched_pair"
    ]
  }
  ```

parsed_json:
  {"country": "Nigeria", "currency": "NGN", "denomination": "1 Naira", "series_year": null, "series_name": "Second series", "series_range": "1984-present", "issue_year": null, "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": "2007", "predecessor_currency": null, "successor_currency": null, "issuer": "Central Bank of Nigeria", "issuer_native": null, "signatures": "Governor: Abdulkadir Ahmed; Director of Currency Operations: [signature present]", "printer": "Nigerian Security Printing and Minting Company", "engraver": null, "material": "paper", "dimensions_mm": "151x78", "watermark": "Coat of arms of Nigeria in clear field at right", "security_features": "watermark,intaglio,microprint", "color_palette": "#8b4545,#f5deb3,#2f4f2f", "portrait_subject": null, "reverse_subject": "General Murtala Ramat Mohammed", "themes": "military,statesman,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-20", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Traditional Nigerian village scene depicting two figures carrying loads on their heads in front of thatched-roof huts, representing daily life and agricultural activities in rural Nigeria. This design emphasizes the cultural heritage and traditional lifestyle of Nigerian communities. The circular watermark area at left shows the national coat of arms featuring the black shield with wavy white bands representing the Niger and Benue rivers, supported by two horses, with the eagle of strength above. The denomination 'ONE NAIRA' appears at bottom, with decorative guilloche patterns throughout.", "back_description": "General Murtala Ramat Mohammed (1938\u20131976), Nigerian military officer who served as Head of State from July 1975 until his assassination in February 1976. During his brief tenure, Mohammed initiated major reforms including the purging of corrupt officials, the relocation of the federal capital to Abuja, and the creation of new states. He is remembered as one of Nigeria's most decisive and reform-minded leaders. His portrait appears at left, with Arabic script (\u0639\u0634\u0631\u0648\u0646 \u0646\u064a\u0631\u0627) meaning 'Twenty Naira' visible in decorative panel at center-right. The serial number B/28 861858 appears at top right.", "historical_notes": "This 1 Naira note belongs to the second series of Nigerian banknotes issued by the Central Bank of Nigeria, introduced in 1984 following the military government's currency reforms. The series maintained the Naira and Kobo denominations established in 1973 when Nigeria decimalized its currency. The front depicts traditional Nigerian village life, emphasizing the nation's cultural roots and agricultural heritage. The back features General Murtala Mohammed, whose short-lived but impactful administration (July 1975 \u2013 February 1976) is widely regarded as a transformative period in Nigerian history. Mohammed's portrait was added to Nigerian currency to honor his legacy of anti-corruption measures and national development initiatives. This note was officially withdrawn from circulation in 2007 when polymer notes were introduced for lower denominations, though it remained legal tender for exchange. The serial format with prefix B/28 indicates this is from a later print run within the series. No known public serial-year encoding identified for this issuer.", "language_script": "Latin, Arabic", "languages": "en,ar", "serial_number": "B/28 861858", "serial_prefix": "B/28", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows moderate circulation with some soiling, surface wear, and light staining. Colors remain relatively vibrant. No tears visible but corners show minor rounding.", "estimated_value_low": 2, "estimated_value_high": 8, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 0.95, "series_name": 0.85, "series_year": 0.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.75, "printer": 0.8, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 0.0, "reverse_subject": 1.0, "pick_number": 0.7, "serial_number": 1.0, "front_description": 0.85, "back_description": 0.95, "historical_notes": 0.85, "condition_grade": 0.8}, "overall_confidence": 0.85, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 0.95, "series_name": 0.85, "series_year": 0.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.75, "printer": 0.8, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 0.0, "reverse_subject": 1.0, "pick_number": 0.7, "serial_number": 1.0, "front_description": 0.85, "back_description": 0.95, "historical_notes": 0.85, "condition_grade": 0.8}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 06:50:09
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Nigeria",
    "currency": "NGN",
    "denomination": "1 Naira",
    "series_year": null,
    "series_name": null,
    "series_range": "1973–1984",
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "withdrawn",
    "legal_status_date": null,
    "predecessor_currency": "Nigerian Pound",
    "successor_currency": null,

    "issuer": "Central Bank of Nigeria",
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "151x78",
    "watermark": "Heraldic eagle",
    "security_features": "intaglio,watermark",
    "color_palette": "#8B3A3A,#F5F5DC,#CD5C5C",

    "portrait_subject": null,
    "reverse_subject": "Agricultural workers loading groundnut sacks",
    "themes": "agriculture,industry",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-15",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Agricultural scene depicting workers loading groundnut (peanut) sacks at a Nigerian port or warehouse. The groundnut trade was historically one of Nigeria's most important agricultural exports, particularly from the northern regions. The scene includes traditional thatched buildings in the background and stacks of produce sacks, representing Nigeria's agricultural economy in the post-independence era. The Coat of Arms of Nigeria featuring the black shield with white wavy bands representing the Niger and Benue rivers appears at bottom left with the national motto 'Unity and Faith'.",
    "back_description": null,
    "historical_notes": "CRITICAL FLAG: The two images provided are MISMATCHED - they are NOT the front and back of the same banknote. Image 1 shows a Nigerian 1 Naira note from the early series (P-15 type, 1973-1984), featuring agricultural workers and groundnut sacks. Image 2 shows a Nigerian 20 Naira note featuring General Murtala Ramat Muhammed (1938-1976), Nigeria's fourth military head of state who was assassinated in an abortive coup. These are two different denominations from different series. The 1 Naira note catalogued here belongs to the first series of Naira banknotes introduced in 1973 when Nigeria decimalized, replacing the Nigerian Pound at a rate of 2 Naira = 1 Pound.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,

    "condition_grade": "F",
    "condition_notes": "Moderate circulation wear, some soiling and softness to paper, no major tears visible",

    "estimated_value_low": 2,
    "estimated_value_high": 8,
    "value_currency": "USD",

    "field_confidence": {
      "country": 0.99,
      "currency": 0.99,
      "denomination": 0.99,
      "series_name": 0.3,
      "series_year": 0.5,
      "issue_year": 0.3,
      "issuer": 0.99,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.7,
      "watermark": 0.6,
      "portrait_subject": 0.0,
      "reverse_subject": 0.85,
      "pick_number": 0.7,
      "serial_number": 0.0,
      "front_description": 0.85,
      "back_description": 0.0,
      "historical_notes": 0.9,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.35,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Nigeria", "currency": "NGN", "denomination": "1 Naira", "series_year": null, "series_name": null, "series_range": "1973\u20131984", "issue_year": null, "era": "1946_1989", "legal_status": "withdrawn", "legal_status_date": null, "predecessor_currency": "Nigerian Pound", "successor_currency": null, "issuer": "Central Bank of Nigeria", "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "151x78", "watermark": "Heraldic eagle", "security_features": "intaglio,watermark", "color_palette": "#8B3A3A,#F5F5DC,#CD5C5C", "portrait_subject": null, "reverse_subject": "Agricultural workers loading groundnut sacks", "themes": "agriculture,industry", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-15", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Agricultural scene depicting workers loading groundnut (peanut) sacks at a Nigerian port or warehouse. The groundnut trade was historically one of Nigeria's most important agricultural exports, particularly from the northern regions. The scene includes traditional thatched buildings in the background and stacks of produce sacks, representing Nigeria's agricultural economy in the post-independence era. The Coat of Arms of Nigeria featuring the black shield with white wavy bands representing the Niger and Benue rivers appears at bottom left with the national motto 'Unity and Faith'.", "back_description": null, "historical_notes": "CRITICAL FLAG: The two images provided are MISMATCHED - they are NOT the front and back of the same banknote. Image 1 shows a Nigerian 1 Naira note from the early series (P-15 type, 1973-1984), featuring agricultural workers and groundnut sacks. Image 2 shows a Nigerian 20 Naira note featuring General Murtala Ramat Muhammed (1938-1976), Nigeria's fourth military head of state who was assassinated in an abortive coup. These are two different denominations from different series. The 1 Naira note catalogued here belongs to the first series of Naira banknotes introduced in 1973 when Nigeria decimalized, replacing the Nigerian Pound at a rate of 2 Naira = 1 Pound.", "language_script": "Latin", "languages": "en", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Moderate circulation wear, some soiling and softness to paper, no major tears visible", "estimated_value_low": 2, "estimated_value_high": 8, "value_currency": "USD", "field_confidence": {"country": 0.99, "currency": 0.99, "denomination": 0.99, "series_name": 0.3, "series_year": 0.5, "issue_year": 0.3, "issuer": 0.99, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.7, "watermark": 0.6, "portrait_subject": 0.0, "reverse_subject": 0.85, "pick_number": 0.7, "serial_number": 0.0, "front_description": 0.85, "back_description": 0.0, "historical_notes": 0.9, "condition_grade": 0.8}, "overall_confidence": 0.35, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.99, "currency": 0.99, "denomination": 0.99, "series_name": 0.3, "series_year": 0.5, "issue_year": 0.3, "issuer": 0.99, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.7, "watermark": 0.6, "portrait_subject": 0.0, "reverse_subject": 0.85, "pick_number": 0.7, "serial_number": 0.0, "front_description": 0.85, "back_description": 0.0, "historical_notes": 0.9, "condition_grade": 0.8}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:50:52
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "North Korea",
    "currency": "KPW",
    "denomination": "5000",
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "Central Bank of the Democratic People's Republic of Korea",
    "issuer_native": "조선민주주의인민공화국중앙은행",
    "signatures": null,
    "printer": null,
    "engraver": null,
    "material": "paper",
    "dimensions_mm": "157x67",
    "watermark": null,
    "security_features": "microprint,intaglio",
    "color_palette": "#8b4513,#f5deb3,#d2691e",
    "portrait_subject": null,
    "reverse_subject": "Kumsusan Palace of the Sun",
    "themes": "architecture,commemorative",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": "46",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "scarce",
    "front_description": "Traditional Korean multi-tiered pavilion architecture, depicting what appears to be a historic temple or palace complex with characteristic curved rooflines and multiple levels. The architectural motif represents Korean cultural heritage and traditional building styles that symbolize national identity. The note features elaborate guilloche patterns and Korean-language inscriptions indicating the issuing authority.",
    "back_description": "Kumsusan Palace of the Sun in Pyongyang, the mausoleum of Kim Il-sung and Kim Jong-il, formerly known as the Kumsusan Memorial Palace. This grand neoclassical building with its distinctive colonnaded facade serves as the resting place of North Korea's founding leader Kim Il-sung (d. 1994) and his son Kim Jong-il (d. 2011). The palace is one of the most significant political and ideological monuments in North Korea, representing the cult of personality surrounding the Kim dynasty. Magnolia blossoms appear at lower right, the national flower of North Korea.",
    "historical_notes": "This 5000 won note belongs to a series issued by the Central Bank of the Democratic People's Republic of Korea, likely from the 1990s or early 2000s era based on design characteristics and the inclusion of Kumsusan Palace. The note was part of North Korea's currency system before the 2009 revaluation (which caused significant economic disruption and was later partially reversed). The visible serial number 'LA 959848' suggests this is from a specific print run, though North Korean serial number systems are not publicly well-documented. The note has been withdrawn from circulation following currency reforms. The use of Kumsusan Palace on the reverse reflects the building's transformation into a mausoleum after Kim Il-sung's death in 1994, suggesting issue after that date. Without a visible printed year and given limited public documentation of North Korean currency series, precise dating requires caution.",
    "language_script": "Hangul (Korean script)",
    "languages": "ko",
    "serial_number": "LA 959848",
    "serial_prefix": "LA",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,
    "condition_grade": "XF",
    "condition_notes": null,
    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,
    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.3,
      "series_year": 0.3,
      "issue_year": 0.3,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.3,
      "material": 0.95,
      "dimensions_mm": 0.85,
      "watermark": 0.2,
      "portrait_subject": 0.0,
      "reverse_subject": 0.95,
      "pick_number": 0.85,
      "serial_number": 1.0,
      "front_description": 0.75,
      "back_description": 0.95,
      "historical_notes": 0.75,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.8,
    "flags": []
  }
  ```

parsed_json:
  {"country": "North Korea", "currency": "KPW", "denomination": "5000", "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "Central Bank of the Democratic People's Republic of Korea", "issuer_native": "\uc870\uc120\ubbfc\uc8fc\uc8fc\uc758\uc778\ubbfc\uacf5\ud654\uad6d\uc911\uc559\uc740\ud589", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "157x67", "watermark": null, "security_features": "microprint,intaglio", "color_palette": "#8b4513,#f5deb3,#d2691e", "portrait_subject": null, "reverse_subject": "Kumsusan Palace of the Sun", "themes": "architecture,commemorative", "commemorative": false, "commemorative_occasion": null, "pick_number": "46", "krause_id": null, "wpm_id": null, "rarity_tier": "scarce", "front_description": "Traditional Korean multi-tiered pavilion architecture, depicting what appears to be a historic temple or palace complex with characteristic curved rooflines and multiple levels. The architectural motif represents Korean cultural heritage and traditional building styles that symbolize national identity. The note features elaborate guilloche patterns and Korean-language inscriptions indicating the issuing authority.", "back_description": "Kumsusan Palace of the Sun in Pyongyang, the mausoleum of Kim Il-sung and Kim Jong-il, formerly known as the Kumsusan Memorial Palace. This grand neoclassical building with its distinctive colonnaded facade serves as the resting place of North Korea's founding leader Kim Il-sung (d. 1994) and his son Kim Jong-il (d. 2011). The palace is one of the most significant political and ideological monuments in North Korea, representing the cult of personality surrounding the Kim dynasty. Magnolia blossoms appear at lower right, the national flower of North Korea.", "historical_notes": "This 5000 won note belongs to a series issued by the Central Bank of the Democratic People's Republic of Korea, likely from the 1990s or early 2000s era based on design characteristics and the inclusion of Kumsusan Palace. The note was part of North Korea's currency system before the 2009 revaluation (which caused significant economic disruption and was later partially reversed). The visible serial number 'LA 959848' suggests this is from a specific print run, though North Korean serial number systems are not publicly well-documented. The note has been withdrawn from circulation following currency reforms. The use of Kumsusan Palace on the reverse reflects the building's transformation into a mausoleum after Kim Il-sung's death in 1994, suggesting issue after that date. Without a visible printed year and given limited public documentation of North Korean currency series, precise dating requires caution.", "language_script": "Hangul (Korean script)", "languages": "ko", "serial_number": "LA 959848", "serial_prefix": "LA", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "XF", "condition_notes": null, "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.3, "series_year": 0.3, "issue_year": 0.3, "issuer": 1.0, "signatures": 0.0, "printer": 0.3, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.2, "portrait_subject": 0.0, "reverse_subject": 0.95, "pick_number": 0.85, "serial_number": 1.0, "front_description": 0.75, "back_description": 0.95, "historical_notes": 0.75, "condition_grade": 0.85}, "overall_confidence": 0.8, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.3, "series_year": 0.3, "issue_year": 0.3, "issuer": 1.0, "signatures": 0.0, "printer": 0.3, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.2, "portrait_subject": 0.0, "reverse_subject": 0.95, "pick_number": 0.85, "serial_number": 1.0, "front_description": 0.75, "back_description": 0.95, "historical_notes": 0.75, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:50:57
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Nigeria",
    "currency": "NGN",
    "denomination": "20",
    "series_year": "2024",
    "series_name": "Polymer series",
    "series_range": "2024–present",
    "issue_year": "2024",
    "era": "1990_present",
    "legal_status": "in_circulation",
    "legal_status_date": "2024",
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": "Central Bank of Nigeria",
    "issuer_native": null,
    "signatures": "Governor: Olayemi Michael Cardoso; Director of Currency Operations: W. Jamus Olayemi Folaji",
    "printer": null,
    "engraver": null,

    "material": "polymer",
    "dimensions_mm": "151x72",
    "watermark": null,
    "security_features": "hologram,optically_variable_ink,see_through_register,windowed_thread,microprint",
    "color_palette": "#4a7c7c,#d4e6d4,#8b5a3c",

    "portrait_subject": "Murtala Ramat Mohammed",
    "reverse_subject": "Nigerian coat of arms",
    "themes": "statesman,military",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Murtala Ramat Mohammed (1938–1976), Nigerian military general and Head of State who led the bloodless coup of July 1975. During his brief tenure (July 1975 – February 1976), Mohammed initiated major reforms including the beginning of Nigeria's capital move to Abuja, anti-corruption purges in the civil service, and decisive foreign policy actions supporting African liberation movements. He was assassinated in an attempted coup on 13 February 1976 and is revered as a national hero. The front also displays the Nigerian coat of arms with its black shield, silver wavy bands representing the Niger and Benue rivers, flanked by two white horses, topped by an eagle, and the motto 'Unity and Faith, Peace and Progress' on the scroll below.",
    "back_description": "Murtala Ramat Mohammed in military dress uniform at left, with the Nigerian coat of arms prominently displayed at right. The coat of arms features a black shield with a silver pall (Y-shaped band), representing the confluence of the Niger and Benue rivers, supported by two white horses symbolizing dignity, flanked by red hibiscus flowers (the national flower), topped by an eagle representing strength, on a green and white wreath representing the fertile land. The serial number and 2024 date are clearly visible, indicating this is from the new polymer series introduced by the Central Bank of Nigeria in 2024 to replace the older paper currency and enhance security features.",
    "historical_notes": "This is part of Nigeria's polymer banknote series introduced in 2024 by the Central Bank of Nigeria under Governor Olayemi Michael Cardoso. The redesign follows Nigeria's 2023 currency redesign policy and subsequent introduction of polymer substrates to combat counterfeiting and improve durability. The 20 Naira denomination has featured Murtala Mohammed since the 1984 design series, maintaining continuity with Nigeria's tradition of honouring its military leaders and founding fathers. The polymer series incorporates advanced security features including holograms, see-through registers, and optically variable ink. The 2024 date printed on this note confirms it as a current-issue specimen from the initial polymer print run. Nigeria transitioned to polymer for improved circulation life in its tropical climate and to address widespread counterfeiting of paper notes.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": "JM9269718",
    "serial_prefix": "JM",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "UNC",
    "condition_notes": "Appears to be uncirculated polymer note with sharp corners and no visible wear",

    "estimated_value_low": 1,
    "estimated_value_high": 3,
    "value_currency": "USD",

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.95,
      "series_year": 1.0,
      "issue_year": 1.0,
      "issuer": 1.0,
      "signatures": 0.9,
      "printer": 0.0,
      "material": 1.0,
      "dimensions_mm": 0.85,
      "watermark": 0.3,
      "portrait_subject": 1.0,
      "reverse_subject": 0.95,
      "pick_number": 0.0,
      "serial_number": 1.0,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.9,
      "condition_grade": 0.9
    },
    "overall_confidence": 0.92,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Nigeria", "currency": "NGN", "denomination": "20", "series_year": "2024", "series_name": "Polymer series", "series_range": "2024\u2013present", "issue_year": "2024", "era": "1990_present", "legal_status": "in_circulation", "legal_status_date": "2024", "predecessor_currency": null, "successor_currency": null, "issuer": "Central Bank of Nigeria", "issuer_native": null, "signatures": "Governor: Olayemi Michael Cardoso; Director of Currency Operations: W. Jamus Olayemi Folaji", "printer": null, "engraver": null, "material": "polymer", "dimensions_mm": "151x72", "watermark": null, "security_features": "hologram,optically_variable_ink,see_through_register,windowed_thread,microprint", "color_palette": "#4a7c7c,#d4e6d4,#8b5a3c", "portrait_subject": "Murtala Ramat Mohammed", "reverse_subject": "Nigerian coat of arms", "themes": "statesman,military", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Murtala Ramat Mohammed (1938\u20131976), Nigerian military general and Head of State who led the bloodless coup of July 1975. During his brief tenure (July 1975 \u2013 February 1976), Mohammed initiated major reforms including the beginning of Nigeria's capital move to Abuja, anti-corruption purges in the civil service, and decisive foreign policy actions supporting African liberation movements. He was assassinated in an attempted coup on 13 February 1976 and is revered as a national hero. The front also displays the Nigerian coat of arms with its black shield, silver wavy bands representing the Niger and Benue rivers, flanked by two white horses, topped by an eagle, and the motto 'Unity and Faith, Peace and Progress' on the scroll below.", "back_description": "Murtala Ramat Mohammed in military dress uniform at left, with the Nigerian coat of arms prominently displayed at right. The coat of arms features a black shield with a silver pall (Y-shaped band), representing the confluence of the Niger and Benue rivers, supported by two white horses symbolizing dignity, flanked by red hibiscus flowers (the national flower), topped by an eagle representing strength, on a green and white wreath representing the fertile land. The serial number and 2024 date are clearly visible, indicating this is from the new polymer series introduced by the Central Bank of Nigeria in 2024 to replace the older paper currency and enhance security features.", "historical_notes": "This is part of Nigeria's polymer banknote series introduced in 2024 by the Central Bank of Nigeria under Governor Olayemi Michael Cardoso. The redesign follows Nigeria's 2023 currency redesign policy and subsequent introduction of polymer substrates to combat counterfeiting and improve durability. The 20 Naira denomination has featured Murtala Mohammed since the 1984 design series, maintaining continuity with Nigeria's tradition of honouring its military leaders and founding fathers. The polymer series incorporates advanced security features including holograms, see-through registers, and optically variable ink. The 2024 date printed on this note confirms it as a current-issue specimen from the initial polymer print run. Nigeria transitioned to polymer for improved circulation life in its tropical climate and to address widespread counterfeiting of paper notes.", "language_script": "Latin", "languages": "en", "serial_number": "JM9269718", "serial_prefix": "JM", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Appears to be uncirculated polymer note with sharp corners and no visible wear", "estimated_value_low": 1, "estimated_value_high": 3, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.9, "printer": 0.0, "material": 1.0, "dimensions_mm": 0.85, "watermark": 0.3, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.0, "serial_number": 1.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.9}, "overall_confidence": 0.92, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.9, "printer": 0.0, "material": 1.0, "dimensions_mm": 0.85, "watermark": 0.3, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.0, "serial_number": 1.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.9}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:51:12
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": null,
    "denomination": null,
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": null,
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": null,
    "dimensions_mm": null,
    "watermark": null,
    "security_features": null,
    "color_palette": null,

    "portrait_subject": null,
    "reverse_subject": null,
    "themes": null,
    "commemorative": null,
    "commemorative_occasion": null,

    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,

    "front_description": "The front image shows a Nigerian 5 Naira banknote issued by the Central Bank of Nigeria. The note features traditional Nigerian figures in ceremonial dress with staffs, representing cultural heritage. The coat of arms of Nigeria appears at right, and the outline map of Nigeria is shown at upper left. The denomination is indicated in multiple Nigerian languages including 'Naira Biyar' (Hausa), 'Náírà Márùn-ún' (Yoruba), and 'Naira Ise' (Igbo).",
    "back_description": "The back image shows a North Korean 5000 Won commemorative banknote celebrating the 70th anniversary of the founding of the People's Republic (1949-2019). The note depicts Kim Il-sung's birthplace at Mangyongdae, a modest thatched-roof house with surrounding trees and traditional Korean architecture. The commemorative overprint in red and green marks the 70th anniversary (외교관계 70돐 周年 1949-2019). Serial number visible as 'ㅍㅁ 0020902'.",
    "historical_notes": "These are two completely different banknotes from different countries that have been photographed as a mismatched pair. The front is a Nigerian 5 Naira note from the Central Bank of Nigeria, part of the polymer series or earlier paper series featuring traditional Nigerian cultural imagery. The back is a North Korean 5000 Won commemorative note issued in 2019 to mark the 70th anniversary of the founding of the Democratic People's Republic of Korea in 1949, depicting Kim Il-sung's birthplace at Mangyongdae, a site of revolutionary pilgrimage in North Korean ideology.",
    "language_script": null,
    "languages": null,

    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,

    "condition_grade": "unknown",
    "condition_notes": null,

    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,

    "field_confidence": {
      "country": 0.0,
      "currency": 0.0,
      "denomination": 0.0,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 0.0,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.0,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.0,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.98,
      "condition_grade": 0.0
    },
    "overall_confidence": 0.0,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": null, "currency": null, "denomination": null, "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": null, "legal_status": null, "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": null, "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": null, "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": null, "portrait_subject": null, "reverse_subject": null, "themes": null, "commemorative": null, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "The front image shows a Nigerian 5 Naira banknote issued by the Central Bank of Nigeria. The note features traditional Nigerian figures in ceremonial dress with staffs, representing cultural heritage. The coat of arms of Nigeria appears at right, and the outline map of Nigeria is shown at upper left. The denomination is indicated in multiple Nigerian languages including 'Naira Biyar' (Hausa), 'N\u00e1\u00edr\u00e0 M\u00e1r\u00f9n-\u00fan' (Yoruba), and 'Naira Ise' (Igbo).", "back_description": "The back image shows a North Korean 5000 Won commemorative banknote celebrating the 70th anniversary of the founding of the People's Republic (1949-2019). The note depicts Kim Il-sung's birthplace at Mangyongdae, a modest thatched-roof house with surrounding trees and traditional Korean architecture. The commemorative overprint in red and green marks the 70th anniversary (\uc678\uad50\uad00\uacc4 70\ub3d0 \u5468\u5e74 1949-2019). Serial number visible as '\u314d\u3141 0020902'.", "historical_notes": "These are two completely different banknotes from different countries that have been photographed as a mismatched pair. The front is a Nigerian 5 Naira note from the Central Bank of Nigeria, part of the polymer series or earlier paper series featuring traditional Nigerian cultural imagery. The back is a North Korean 5000 Won commemorative note issued in 2019 to mark the 70th anniversary of the founding of the Democratic People's Republic of Korea in 1949, depicting Kim Il-sung's birthplace at Mangyongdae, a site of revolutionary pilgrimage in North Korean ideology.", "language_script": null, "languages": null, "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "unknown", "condition_notes": null, "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.0, "currency": 0.0, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.0, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.98, "condition_grade": 0.0}, "overall_confidence": 0.0, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.0, "currency": 0.0, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.0, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.98, "condition_grade": 0.0}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 06:51:12
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": null,
    "denomination": null,
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": null,
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": null,
    "dimensions_mm": null,
    "watermark": null,
    "security_features": null,
    "color_palette": null,

    "portrait_subject": null,
    "reverse_subject": null,
    "themes": null,
    "commemorative": null,
    "commemorative_occasion": null,

    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,

    "front_description": "Nigerian 5 Naira polymer banknote featuring Nnamdi Azikiwe dancers (traditional drummers and dancers) in ceremonial dress at center right. The note displays the map of Nigeria in national colors (green-white-green) at upper left and the coat of arms of Nigeria featuring the black shield with white wavy pall (representing the Niger and Benue rivers confluence), supported by two white horses, with an eagle above. Denomination shown in English 'FIVE NAIRA' and in Hausa 'Naira Biyar', Yoruba 'Náírà Márùn-ún', and Igbo 'Naira Ise'.",
    "back_description": "North Korean 5000 Won commemorative banknote celebrating the 70th anniversary of China-North Korea diplomatic relations (1949-2019). Features the Mangyongdae birthplace of Kim Il-sung, a traditional thatched-roof house complex surrounded by pine trees. The DPRK national emblem appears at upper left. Red overprint commemorates '70周年' (70th Anniversary) with dates '(1949-2019)' and text indicating China-DPRK diplomatic relations anniversary. The red characters '기념' (Commemoration) appear vertically at right.",
    "historical_notes": "CRITICAL ERROR: These two images are NOT the front and back of the same banknote. The front shows a Nigerian 5 Naira polymer note (Central Bank of Nigeria, part of the polymer series introduced in 2009), while the back shows a North Korean 5000 Won commemorative note issued in 2019 to mark 70 years of diplomatic relations between China and North Korea (established October 6, 1949). These are two completely different banknotes from different countries, currencies, and denominations. No valid catalogue entry can be produced for this mismatched pair.",
    "language_script": null,
    "languages": null,

    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,

    "condition_grade": null,
    "condition_notes": "Cannot assess - mismatched pair of banknotes from different countries",

    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,

    "field_confidence": {
      "country": 0.0,
      "currency": 0.0,
      "denomination": 0.0,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 0.0,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.0,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.0,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.85,
      "back_description": 0.85,
      "historical_notes": 0.95,
      "condition_grade": 0.0
    },
    "overall_confidence": 0.1,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": null, "currency": null, "denomination": null, "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": null, "legal_status": null, "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": null, "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": null, "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": null, "portrait_subject": null, "reverse_subject": null, "themes": null, "commemorative": null, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "Nigerian 5 Naira polymer banknote featuring Nnamdi Azikiwe dancers (traditional drummers and dancers) in ceremonial dress at center right. The note displays the map of Nigeria in national colors (green-white-green) at upper left and the coat of arms of Nigeria featuring the black shield with white wavy pall (representing the Niger and Benue rivers confluence), supported by two white horses, with an eagle above. Denomination shown in English 'FIVE NAIRA' and in Hausa 'Naira Biyar', Yoruba 'N\u00e1\u00edr\u00e0 M\u00e1r\u00f9n-\u00fan', and Igbo 'Naira Ise'.", "back_description": "North Korean 5000 Won commemorative banknote celebrating the 70th anniversary of China-North Korea diplomatic relations (1949-2019). Features the Mangyongdae birthplace of Kim Il-sung, a traditional thatched-roof house complex surrounded by pine trees. The DPRK national emblem appears at upper left. Red overprint commemorates '70\u5468\u5e74' (70th Anniversary) with dates '(1949-2019)' and text indicating China-DPRK diplomatic relations anniversary. The red characters '\uae30\ub150' (Commemoration) appear vertically at right.", "historical_notes": "CRITICAL ERROR: These two images are NOT the front and back of the same banknote. The front shows a Nigerian 5 Naira polymer note (Central Bank of Nigeria, part of the polymer series introduced in 2009), while the back shows a North Korean 5000 Won commemorative note issued in 2019 to mark 70 years of diplomatic relations between China and North Korea (established October 6, 1949). These are two completely different banknotes from different countries, currencies, and denominations. No valid catalogue entry can be produced for this mismatched pair.", "language_script": null, "languages": null, "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": null, "condition_notes": "Cannot assess - mismatched pair of banknotes from different countries", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.0, "currency": 0.0, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.0, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.85, "back_description": 0.85, "historical_notes": 0.95, "condition_grade": 0.0}, "overall_confidence": 0.1, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.0, "currency": 0.0, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.0, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.85, "back_description": 0.85, "historical_notes": 0.95, "condition_grade": 0.0}


provider: openai
model: gpt-4o
status: ok
created_at: 2026-05-10 06:51:12
prompt_version: v3-year-reasoning
raw_response:
  {
    "country": null,
    "currency": null,
    "denomination": null,
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": null,
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": null,
    "dimensions_mm": null,
    "watermark": null,
    "security_features": null,
    "color_palette": null,

    "portrait_subject": null,
    "reverse_subject": null,
    "themes": null,
    "commemorative": null,
    "commemorative_occasion": null,

    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,

    "front_description": "The front of the 5 Naira note from Nigeria features dancers in traditional attire, representing a cultural celebration. The map of Nigeria and the Nigerian coat of arms are also included.",
    "back_description": "The back of a 5000 Won commemorative note from North Korea, featuring a depiction of a building, possibly in celebration of the 70th anniversary of diplomatic relations.",
    "historical_notes": "The 5 Naira note is part of Nigeria's currency series issued by the Central Bank of Nigeria. The 5000 Won note appears to be a commemorative issue from North Korea, marking an anniversary celebrated in 2019.",
    "language_script": null,
    "languages": null,

    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,

    "condition_grade": null,
    "condition_notes": null,

    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,

    "field_confidence": {
      "country": 0.5, 
      "currency": 0.5, 
      "denomination": 0.6,
      "series_name": 0.5, 
      "series_year": 0.5, 
      "issue_year": 0.5,
      "issuer": 0.5, 
      "signatures": 0.5, 
      "printer": 0.5,
      "material": 0.5, 
      "dimensions_mm": 0.5, 
      "watermark": 0.5,
      "portrait_subject": 0.7, 
      "reverse_subject": 0.6,
      "pick_number": 0.5, 
      "serial_number": 0.5,
      "front_description": 0.8, 
      "back_description": 0.7,
      "historical_notes": 0.7, 
      "condition_grade": 0.5
    },
    "overall_confidence": 0.6,
    "flags": ["mismatched_pair"]
  }

parsed_json:
  {"country": null, "currency": null, "denomination": null, "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": null, "legal_status": null, "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": null, "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": null, "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": null, "portrait_subject": null, "reverse_subject": null, "themes": null, "commemorative": null, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "The front of the 5 Naira note from Nigeria features dancers in traditional attire, representing a cultural celebration. The map of Nigeria and the Nigerian coat of arms are also included.", "back_description": "The back of a 5000 Won commemorative note from North Korea, featuring a depiction of a building, possibly in celebration of the 70th anniversary of diplomatic relations.", "historical_notes": "The 5 Naira note is part of Nigeria's currency series issued by the Central Bank of Nigeria. The 5000 Won note appears to be a commemorative issue from North Korea, marking an anniversary celebrated in 2019.", "language_script": null, "languages": null, "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": null, "condition_notes": null, "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.5, "currency": 0.5, "denomination": 0.6, "series_name": 0.5, "series_year": 0.5, "issue_year": 0.5, "issuer": 0.5, "signatures": 0.5, "printer": 0.5, "material": 0.5, "dimensions_mm": 0.5, "watermark": 0.5, "portrait_subject": 0.7, "reverse_subject": 0.6, "pick_number": 0.5, "serial_number": 0.5, "front_description": 0.8, "back_description": 0.7, "historical_notes": 0.7, "condition_grade": 0.5}, "overall_confidence": 0.6, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.5, "currency": 0.5, "denomination": 0.6, "series_name": 0.5, "series_year": 0.5, "issue_year": 0.5, "issuer": 0.5, "signatures": 0.5, "printer": 0.5, "material": 0.5, "dimensions_mm": 0.5, "watermark": 0.5, "portrait_subject": 0.7, "reverse_subject": 0.6, "pick_number": 0.5, "serial_number": 0.5, "front_description": 0.8, "back_description": 0.7, "historical_notes": 0.7, "condition_grade": 0.5}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:51:17
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Nigeria",
    "currency": "NGN",
    "denomination": "20",
    "series_year": "2018",
    "series_name": "Polymer series",
    "series_range": "2007–present",
    "issue_year": "2018",
    "era": "1990_present",
    "legal_status": "in_circulation",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "Central Bank of Nigeria",
    "issuer_native": null,
    "signatures": "Governor: Godwin I. Emefiele; Director of Currency Operations: Olufe Sanyaolu",
    "printer": null,
    "engraver": null,
    "material": "polymer",
    "dimensions_mm": "150x72",
    "watermark": "Nigerian coat of arms visible in clear polymer window",
    "security_features": "hologram, see_through_register, optically_variable_ink, microprint",
    "color_palette": "#d4b896,#8fad86,#2d4a2e",
    "portrait_subject": "Ladi Kwali",
    "reverse_subject": "Alhaji Sir Abubakar Tafawa Balewa",
    "themes": "artist,indigenous_culture,statesman",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": "P-34",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",
    "front_description": "Ladi Kwali (c. 1925–1984), renowned Nigerian potter from the Gwari people (Kaduna State). She was the first woman in Nigeria to become internationally recognized for her ceramic artistry, combining traditional Gwari coil-building techniques with modern studio pottery methods. Her work is held in collections worldwide including the British Museum. She is depicted seated at work, shaping a decorated pottery vessel with traditional tools, wearing traditional headwrap and dress. The caption reads 'LADI KWALI (POTTERY WORKS)' at the base of the vignette.",
    "back_description": "Alhaji Sir Abubakar Tafawa Balewa (1912–1966), Nigeria's first and only Prime Minister, serving from independence in 1960 until his assassination in the 1966 military coup. A teacher, politician and founding father of modern Nigeria, he was knighted by Queen Elizabeth II in 1960. He was a moderate leader who worked to unite Nigeria's diverse ethnic and religious groups during the early years of independence, and remains one of the nation's most honoured statesmen.",
    "historical_notes": "This note belongs to Nigeria's polymer banknote series introduced by the Central Bank of Nigeria beginning in 2007 to combat counterfeiting and improve durability in Nigeria's tropical climate. The 20 naira polymer note was issued with the 2018 signature combination of Governor Godwin Emefiele (in office 2014–2023) and Director of Currency Operations Olufe Sanyaolu. The front honours Ladi Kwali, celebrating Nigerian indigenous craft and the role of women in Nigerian culture and economy. The back honours Abubakar Tafawa Balewa, founding Prime Minister. The design includes advanced security features typical of polymer substrates: transparent window with coat of arms, see-through register elements, and optically variable ink. Nigeria's polymer series is part of ongoing currency modernization while maintaining the naira as legal tender since its introduction in 1973 (replacing the Nigerian pound).",
    "language_script": "Latin",
    "languages": "en",
    "serial_number": "EC5870918",
    "serial_prefix": "EC",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,
    "condition_grade": "UNC",
    "condition_notes": "Appears uncirculated with sharp corners, no visible folds or wear",
    "estimated_value_low": 2,
    "estimated_value_high": 5,
    "value_currency": "USD",
    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.95,
      "series_year": 1.0,
      "issue_year": 1.0,
      "issuer": 1.0,
      "signatures": 0.9,
      "printer": 0.0,
      "material": 1.0,
      "dimensions_mm": 0.85,
      "watermark": 0.9,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "pick_number": 0.95,
      "serial_number": 1.0,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.9,
      "condition_grade": 0.9
    },
    "overall_confidence": 0.95,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Nigeria", "currency": "NGN", "denomination": "20", "series_year": "2018", "series_name": "Polymer series", "series_range": "2007\u2013present", "issue_year": "2018", "era": "1990_present", "legal_status": "in_circulation", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "Central Bank of Nigeria", "issuer_native": null, "signatures": "Governor: Godwin I. Emefiele; Director of Currency Operations: Olufe Sanyaolu", "printer": null, "engraver": null, "material": "polymer", "dimensions_mm": "150x72", "watermark": "Nigerian coat of arms visible in clear polymer window", "security_features": "hologram, see_through_register, optically_variable_ink, microprint", "color_palette": "#d4b896,#8fad86,#2d4a2e", "portrait_subject": "Ladi Kwali", "reverse_subject": "Alhaji Sir Abubakar Tafawa Balewa", "themes": "artist,indigenous_culture,statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-34", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Ladi Kwali (c. 1925\u20131984), renowned Nigerian potter from the Gwari people (Kaduna State). She was the first woman in Nigeria to become internationally recognized for her ceramic artistry, combining traditional Gwari coil-building techniques with modern studio pottery methods. Her work is held in collections worldwide including the British Museum. She is depicted seated at work, shaping a decorated pottery vessel with traditional tools, wearing traditional headwrap and dress. The caption reads 'LADI KWALI (POTTERY WORKS)' at the base of the vignette.", "back_description": "Alhaji Sir Abubakar Tafawa Balewa (1912\u20131966), Nigeria's first and only Prime Minister, serving from independence in 1960 until his assassination in the 1966 military coup. A teacher, politician and founding father of modern Nigeria, he was knighted by Queen Elizabeth II in 1960. He was a moderate leader who worked to unite Nigeria's diverse ethnic and religious groups during the early years of independence, and remains one of the nation's most honoured statesmen.", "historical_notes": "This note belongs to Nigeria's polymer banknote series introduced by the Central Bank of Nigeria beginning in 2007 to combat counterfeiting and improve durability in Nigeria's tropical climate. The 20 naira polymer note was issued with the 2018 signature combination of Governor Godwin Emefiele (in office 2014\u20132023) and Director of Currency Operations Olufe Sanyaolu. The front honours Ladi Kwali, celebrating Nigerian indigenous craft and the role of women in Nigerian culture and economy. The back honours Abubakar Tafawa Balewa, founding Prime Minister. The design includes advanced security features typical of polymer substrates: transparent window with coat of arms, see-through register elements, and optically variable ink. Nigeria's polymer series is part of ongoing currency modernization while maintaining the naira as legal tender since its introduction in 1973 (replacing the Nigerian pound).", "language_script": "Latin", "languages": "en", "serial_number": "EC5870918", "serial_prefix": "EC", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Appears uncirculated with sharp corners, no visible folds or wear", "estimated_value_low": 2, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.9, "printer": 0.0, "material": 1.0, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.9}, "overall_confidence": 0.95, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.9, "printer": 0.0, "material": 1.0, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.9}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 06:51:17
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Nigeria",
    "currency": "NGN",
    "denomination": "20",
    "series_year": null,
    "series_name": "Polymer Series",
    "series_range": "2006–present",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "in_circulation",
    "legal_status_date": null,
    "predecessor_currency": "Nigerian Pound",
    "successor_currency": null,

    "issuer": "Central Bank of Nigeria",
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "polymer",
    "dimensions_mm": "140x72",
    "watermark": null,
    "security_features": "thread,hologram,see_through_register",
    "color_palette": "#4a7c59,#8fbc8f,#2f4f4f",

    "portrait_subject": "Ladi Kwali",
    "reverse_subject": null,
    "themes": "artist,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-34",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Ladi Kwali (c. 1925–1984), renowned Nigerian potter from Kwali village in present-day Federal Capital Territory. She was one of the most celebrated traditional potters in Africa, known for her distinctive coiled pottery decorated with geometric and figurative designs. She was taught by Michael Cardew at the Abuja Pottery Training Centre and became internationally recognized, receiving the Member of the Order of the British Empire (MBE) in 1963. The note shows her working at her craft with traditional pottery vessels. The coat of arms of Nigeria appears at lower right, featuring the national motto 'Unity and Faith, Peace and Progress'. The map of Nigeria appears at upper left with national flag colors.",
    "back_description": "Sir Abubakar Tafawa Balewa (1912–1966), Nigeria's first and only Prime Minister, serving from 1960 until his assassination in the 1966 Nigerian coup d'état. A prominent Northern Nigerian politician and member of the Northern People's Congress, he led Nigeria to independence and through its early years as an independent nation. The note shows his portrait with inscription identifying him and his dates (1912-1966). The Central Bank of Nigeria coat of arms appears at top center.",
    "historical_notes": "CRITICAL: These images show TWO DIFFERENT Nigerian polymer banknotes that have been mismatched. The FRONT image shows a 20 Naira note featuring Ladi Kwali (Potter) from the polymer series introduced in 2006. The BACK image shows a 5 Naira note dated 2018 featuring Abubakar Tafawa Balewa with serial number EC5870918, signed by Governor Godwin Emefiele and Director of Currency Operations. Nigeria converted its lower denominations (5, 10, 20, 50 Naira) to polymer substrate beginning in 2007-2009 for durability in tropical conditions. The polymer notes feature clear windows with the Central Bank emblem showing an eagle perched on traditional drums. The cataloguing data provided reflects the 20 Naira front image as primary.",
    "language_script": "Latin",
    "languages": "en,ha,ig,yo",

    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,

    "condition_grade": "UNC",
    "condition_notes": "Both notes appear uncirculated with sharp corners and no folds, though they are mismatched",

    "estimated_value_low": 1,
    "estimated_value_high": 3,
    "value_currency": "USD",

    "field_confidence": {
      "country": 0.99,
      "currency": 0.99,
      "denomination": 0.95,
      "series_name": 0.85,
      "series_year": 0.5,
      "issue_year": 0.3,
      "issuer": 0.99,
      "signatures": 0.3,
      "printer": 0.3,
      "material": 0.95,
      "dimensions_mm": 0.75,
      "watermark": 0.3,
      "portrait_subject": 0.95,
      "reverse_subject": 0.4,
      "pick_number": 0.7,
      "serial_number": 0.3,
      "front_description": 0.92,
      "back_description": 0.92,
      "historical_notes": 0.9,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.55,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Nigeria", "currency": "NGN", "denomination": "20", "series_year": null, "series_name": "Polymer Series", "series_range": "2006\u2013present", "issue_year": null, "era": "1990_present", "legal_status": "in_circulation", "legal_status_date": null, "predecessor_currency": "Nigerian Pound", "successor_currency": null, "issuer": "Central Bank of Nigeria", "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": "polymer", "dimensions_mm": "140x72", "watermark": null, "security_features": "thread,hologram,see_through_register", "color_palette": "#4a7c59,#8fbc8f,#2f4f4f", "portrait_subject": "Ladi Kwali", "reverse_subject": null, "themes": "artist,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-34", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Ladi Kwali (c. 1925\u20131984), renowned Nigerian potter from Kwali village in present-day Federal Capital Territory. She was one of the most celebrated traditional potters in Africa, known for her distinctive coiled pottery decorated with geometric and figurative designs. She was taught by Michael Cardew at the Abuja Pottery Training Centre and became internationally recognized, receiving the Member of the Order of the British Empire (MBE) in 1963. The note shows her working at her craft with traditional pottery vessels. The coat of arms of Nigeria appears at lower right, featuring the national motto 'Unity and Faith, Peace and Progress'. The map of Nigeria appears at upper left with national flag colors.", "back_description": "Sir Abubakar Tafawa Balewa (1912\u20131966), Nigeria's first and only Prime Minister, serving from 1960 until his assassination in the 1966 Nigerian coup d'\u00e9tat. A prominent Northern Nigerian politician and member of the Northern People's Congress, he led Nigeria to independence and through its early years as an independent nation. The note shows his portrait with inscription identifying him and his dates (1912-1966). The Central Bank of Nigeria coat of arms appears at top center.", "historical_notes": "CRITICAL: These images show TWO DIFFERENT Nigerian polymer banknotes that have been mismatched. The FRONT image shows a 20 Naira note featuring Ladi Kwali (Potter) from the polymer series introduced in 2006. The BACK image shows a 5 Naira note dated 2018 featuring Abubakar Tafawa Balewa with serial number EC5870918, signed by Governor Godwin Emefiele and Director of Currency Operations. Nigeria converted its lower denominations (5, 10, 20, 50 Naira) to polymer substrate beginning in 2007-2009 for durability in tropical conditions. The polymer notes feature clear windows with the Central Bank emblem showing an eagle perched on traditional drums. The cataloguing data provided reflects the 20 Naira front image as primary.", "language_script": "Latin", "languages": "en,ha,ig,yo", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Both notes appear uncirculated with sharp corners and no folds, though they are mismatched", "estimated_value_low": 1, "estimated_value_high": 3, "value_currency": "USD", "field_confidence": {"country": 0.99, "currency": 0.99, "denomination": 0.95, "series_name": 0.85, "series_year": 0.5, "issue_year": 0.3, "issuer": 0.99, "signatures": 0.3, "printer": 0.3, "material": 0.95, "dimensions_mm": 0.75, "watermark": 0.3, "portrait_subject": 0.95, "reverse_subject": 0.4, "pick_number": 0.7, "serial_number": 0.3, "front_description": 0.92, "back_description": 0.92, "historical_notes": 0.9, "condition_grade": 0.85}, "overall_confidence": 0.55, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.99, "currency": 0.99, "denomination": 0.95, "series_name": 0.85, "series_year": 0.5, "issue_year": 0.3, "issuer": 0.99, "signatures": 0.3, "printer": 0.3, "material": 0.95, "dimensions_mm": 0.75, "watermark": 0.3, "portrait_subject": 0.95, "reverse_subject": 0.4, "pick_number": 0.7, "serial_number": 0.3, "front_description": 0.92, "back_description": 0.92, "historical_notes": 0.9, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:51:17
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "North Korea",
    "currency": "KPW",
    "denomination": "10000",
    "series_year": "2003",
    "series_name": "Socialist Won series",
    "series_range": "2002–2009",
    "issue_year": "2003",
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": "2009-11-30",
    "predecessor_currency": "Second Won",
    "successor_currency": "Fourth Won",
    "issuer": "Central Bank of the Democratic People's Republic of Korea",
    "issuer_native": "조선민주주의인민공화국중앙은행",
    "signatures": null,
    "printer": null,
    "engraver": null,
    "material": "paper",
    "dimensions_mm": "157x73",
    "watermark": null,
    "security_features": "microprint,intaglio,latent_image",
    "color_palette": "#d4c5b0,#8b7355,#e8d9c5",
    "portrait_subject": null,
    "reverse_subject": "Magnolia flowers",
    "themes": "industry,architecture,agriculture",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": "CS12",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",
    "front_description": "The Ryugyong Hotel in Pyongyang, a 105-story pyramid-shaped skyscraper construction project begun in 1987. The hotel was intended as a symbol of North Korean progress and modernity but remained unfinished for decades. The note also depicts industrial and agricultural scenes representing socialist economic development, including factory buildings and construction cranes, symbolizing the state's emphasis on heavy industry and collective farming under the Juche ideology.",
    "back_description": "Magnolia flowers (Magnolia sieboldii), the national flower of North Korea, depicted in detailed engraving. The magnolia symbolizes purity, nobility, and perseverance in Korean culture and has been associated with the Korean peninsula for centuries. The note features the state emblem of North Korea at center top, showing the hydroelectric dam, Mount Paektu, and a red star, representing the revolutionary struggle and socialist construction.",
    "historical_notes": "This 10,000 won note belongs to the Third Won series issued in 2002–2009, bearing the printed date 주체 92 (2003) — Juche year 92, corresponding to 2003 CE in the North Korean calendar system based on Kim Il-sung's birth year 1912. This series was part of a major currency reform that redenominated the won, replacing the Second Won at a rate of 1:1. The Third Won suffered severe hyperinflation during this period, and these high-denomination notes became necessary for everyday transactions. The currency was abruptly withdrawn in a dramatic revaluation on November 30, 2009, when the Fourth Won replaced it at a rate of 100:1, with exchange limits that wiped out private savings and caused significant economic hardship. The Ryugyong Hotel depicted on the front remained a hollow concrete shell for years and became known as 'the worst building in the history of mankind'; exterior work resumed in 2008 but the building remains largely unused. The serial number format 'ㅍㄷ 109046' uses Korean consonants as prefix indicators.",
    "language_script": "Hangul",
    "languages": "ko",
    "serial_number": "ㅍㄷ109046",
    "serial_prefix": "ㅍㄷ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,
    "condition_grade": "UNC",
    "condition_notes": null,
    "estimated_value_low": 5,
    "estimated_value_high": 15,
    "value_currency": "USD",
    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.85,
      "series_year": 0.95,
      "issue_year": 0.95,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.9,
      "dimensions_mm": 0.85,
      "watermark": 0.5,
      "portrait_subject": 1.0,
      "reverse_subject": 0.95,
      "pick_number": 0.9,
      "serial_number": 0.95,
      "front_description": 0.9,
      "back_description": 0.9,
      "historical_notes": 0.9,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.9,
    "flags": []
  }
  ```

parsed_json:
  {"country": "North Korea", "currency": "KPW", "denomination": "10000", "series_year": "2003", "series_name": "Socialist Won series", "series_range": "2002\u20132009", "issue_year": "2003", "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": "2009-11-30", "predecessor_currency": "Second Won", "successor_currency": "Fourth Won", "issuer": "Central Bank of the Democratic People's Republic of Korea", "issuer_native": "\uc870\uc120\ubbfc\uc8fc\uc8fc\uc758\uc778\ubbfc\uacf5\ud654\uad6d\uc911\uc559\uc740\ud589", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "157x73", "watermark": null, "security_features": "microprint,intaglio,latent_image", "color_palette": "#d4c5b0,#8b7355,#e8d9c5", "portrait_subject": null, "reverse_subject": "Magnolia flowers", "themes": "industry,architecture,agriculture", "commemorative": false, "commemorative_occasion": null, "pick_number": "CS12", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The Ryugyong Hotel in Pyongyang, a 105-story pyramid-shaped skyscraper construction project begun in 1987. The hotel was intended as a symbol of North Korean progress and modernity but remained unfinished for decades. The note also depicts industrial and agricultural scenes representing socialist economic development, including factory buildings and construction cranes, symbolizing the state's emphasis on heavy industry and collective farming under the Juche ideology.", "back_description": "Magnolia flowers (Magnolia sieboldii), the national flower of North Korea, depicted in detailed engraving. The magnolia symbolizes purity, nobility, and perseverance in Korean culture and has been associated with the Korean peninsula for centuries. The note features the state emblem of North Korea at center top, showing the hydroelectric dam, Mount Paektu, and a red star, representing the revolutionary struggle and socialist construction.", "historical_notes": "This 10,000 won note belongs to the Third Won series issued in 2002\u20132009, bearing the printed date \uc8fc\uccb4 92 (2003) \u2014 Juche year 92, corresponding to 2003 CE in the North Korean calendar system based on Kim Il-sung's birth year 1912. This series was part of a major currency reform that redenominated the won, replacing the Second Won at a rate of 1:1. The Third Won suffered severe hyperinflation during this period, and these high-denomination notes became necessary for everyday transactions. The currency was abruptly withdrawn in a dramatic revaluation on November 30, 2009, when the Fourth Won replaced it at a rate of 100:1, with exchange limits that wiped out private savings and caused significant economic hardship. The Ryugyong Hotel depicted on the front remained a hollow concrete shell for years and became known as 'the worst building in the history of mankind'; exterior work resumed in 2008 but the building remains largely unused. The serial number format '\u314d\u3137 109046' uses Korean consonants as prefix indicators.", "language_script": "Hangul", "languages": "ko", "serial_number": "\u314d\u3137109046", "serial_prefix": "\u314d\u3137", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": null, "estimated_value_low": 5, "estimated_value_high": 15, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.85, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.0, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.85, "watermark": 0.5, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.9, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.9, "condition_grade": 0.85}, "overall_confidence": 0.9, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.85, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.0, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.85, "watermark": 0.5, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.9, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.9, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:52:04
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "South Korea",
    "currency": "KRW",
    "denomination": "10 won / 5 won",
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": "demonetized",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "Bank of Korea",
    "issuer_native": "한국은행",
    "signatures": null,
    "printer": null,
    "engraver": null,
    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": "microprint,intaglio",
    "color_palette": "#d4a5a5,#8b7355,#f5f5f5",
    "portrait_subject": null,
    "reverse_subject": null,
    "themes": null,
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,
    "front_description": "This appears to be a dual-denomination specimen or proof note displaying both 10 won (front) and 5 won (reverse) values. The front shows the numeral '10' in a guilloche rosette at center with Korean text '십원' (ten won) in a decorative box at right. The hangul character '십' appears in a box at lower left. The design features intricate line work and security patterns typical of mid-20th century Korean currency.",
    "back_description": "The reverse displays the numeral '5' in a guilloche rosette at center with Korean text '오원' (five won) in a decorative box at right. The hangul character '오' appears in a box at lower left. The color scheme shifts to purple-red tones. This dual-denomination format suggests this is a specimen, proof, or sample note rather than a circulated banknote.",
    "historical_notes": "This note represents an unusual dual-denomination format showing both 10 won and 5 won values on opposite sides. Such pieces were typically produced as specimens, proofs, or printer's samples rather than for circulation. The Bank of Korea (한국은행) has issued won currency since 1950 following the establishment of the Republic of Korea. Small denomination notes like 5 and 10 won were common in the early decades but were eventually replaced by coins as inflation reduced their purchasing power. The simple geometric design with guilloche rosettes and minimal imagery is characteristic of early South Korean banknote design. Without visible signatures, dates, or serial numbers, and given the unusual dual-denomination format, this is most likely a specimen or sample piece. The exact series and issue date cannot be determined from the available evidence.",
    "language_script": "Hangul (Korean alphabet)",
    "languages": "ko",
    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,
    "condition_grade": "UNC",
    "condition_notes": "Appears to be an uncirculated specimen or proof with sharp details and no visible wear",
    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,
    "field_confidence": {
      "country": 0.95,
      "currency": 0.95,
      "denomination": 0.9,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 0.9,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.85,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.0,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.8,
      "back_description": 0.8,
      "historical_notes": 0.75,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.7,
    "flags": [
      "mismatched_pair",
      "unidentified_subject"
    ]
  }
  ```

parsed_json:
  {"country": "South Korea", "currency": "KRW", "denomination": "10 won / 5 won", "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": null, "legal_status": "demonetized", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "Bank of Korea", "issuer_native": "\ud55c\uad6d\uc740\ud589", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": "microprint,intaglio", "color_palette": "#d4a5a5,#8b7355,#f5f5f5", "portrait_subject": null, "reverse_subject": null, "themes": null, "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "This appears to be a dual-denomination specimen or proof note displaying both 10 won (front) and 5 won (reverse) values. The front shows the numeral '10' in a guilloche rosette at center with Korean text '\uc2ed\uc6d0' (ten won) in a decorative box at right. The hangul character '\uc2ed' appears in a box at lower left. The design features intricate line work and security patterns typical of mid-20th century Korean currency.", "back_description": "The reverse displays the numeral '5' in a guilloche rosette at center with Korean text '\uc624\uc6d0' (five won) in a decorative box at right. The hangul character '\uc624' appears in a box at lower left. The color scheme shifts to purple-red tones. This dual-denomination format suggests this is a specimen, proof, or sample note rather than a circulated banknote.", "historical_notes": "This note represents an unusual dual-denomination format showing both 10 won and 5 won values on opposite sides. Such pieces were typically produced as specimens, proofs, or printer's samples rather than for circulation. The Bank of Korea (\ud55c\uad6d\uc740\ud589) has issued won currency since 1950 following the establishment of the Republic of Korea. Small denomination notes like 5 and 10 won were common in the early decades but were eventually replaced by coins as inflation reduced their purchasing power. The simple geometric design with guilloche rosettes and minimal imagery is characteristic of early South Korean banknote design. Without visible signatures, dates, or serial numbers, and given the unusual dual-denomination format, this is most likely a specimen or sample piece. The exact series and issue date cannot be determined from the available evidence.", "language_script": "Hangul (Korean alphabet)", "languages": "ko", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Appears to be an uncirculated specimen or proof with sharp details and no visible wear", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.95, "currency": 0.95, "denomination": 0.9, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.9, "signatures": 0.0, "printer": 0.0, "material": 0.85, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.8, "back_description": 0.8, "historical_notes": 0.75, "condition_grade": 0.85}, "overall_confidence": 0.7, "flags": ["mismatched_pair", "unidentified_subject"]}

field_confidence:
  {"country": 0.95, "currency": 0.95, "denomination": 0.9, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.9, "signatures": 0.0, "printer": 0.0, "material": 0.85, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.8, "back_description": 0.8, "historical_notes": 0.75, "condition_grade": 0.85}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 06:52:04
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "North Korea",
    "currency": "KPW",
    "denomination": "10 Chon",
    "series_year": "1988",
    "series_name": "Socialist Visitor Series",
    "series_range": "1988",
    "issue_year": "1988",
    "era": "1946_1989",
    "legal_status": "withdrawn",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": "Central Bank of the Democratic People's Republic of Korea",
    "issuer_native": "조선민주주의인민공화국 중앙은행",
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "110x55",
    "watermark": null,
    "security_features": null,
    "color_palette": "#d4a5b0,#8b7355,#f5f0f0",

    "portrait_subject": null,
    "reverse_subject": null,
    "themes": null,
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-25",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "North Korean 10 chon note from the 1988 Socialist Visitor Series, issued for use by visitors from socialist countries. The Korean text '십전' (sipjeon) indicates 10 chon. These notes were part of a specialized currency system where different colored notes were issued for different categories of foreign visitors - socialist visitors received pink/red toned notes.",
    "back_description": "This appears to be a mismatched image showing a 5 chon note rather than the reverse of the 10 chon note. The Korean text '오전' indicates 5 chon, and the purple/violet color scheme differs from the olive/pink of the 10 chon front. This is a separate 5 chon note (P-24) from the same Socialist Visitor Series.",
    "historical_notes": "The 1988 North Korean visitor currency series was part of a complex foreign exchange certificate system. Three parallel series existed: red/pink notes for visitors from socialist/communist countries, blue notes for visitors from capitalist/Western countries, and green notes for convertible won used by diplomats. The chon fractional notes (1, 5, 10, 50 chon) supplemented larger won denominations. This system controlled foreign currency and prevented visitors from using regular domestic currency. The visitor won system was eventually phased out as North Korea's economy evolved.",
    "language_script": "Korean (Hangul)",
    "languages": "ko",

    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,

    "condition_grade": "UNC",
    "condition_notes": "Appears crisp and uncirculated with sharp corners and no folds visible",

    "estimated_value_low": 0.25,
    "estimated_value_high": 1.00,
    "value_currency": "USD",

    "field_confidence": {
      "country": 0.95,
      "currency": 0.95,
      "denomination": 0.95,
      "series_name": 0.85,
      "series_year": 0.85,
      "issue_year": 0.85,
      "issuer": 0.90,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.70,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.0,
      "pick_number": 0.80,
      "serial_number": 0.0,
      "front_description": 0.90,
      "back_description": 0.90,
      "historical_notes": 0.85,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.65,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "North Korea", "currency": "KPW", "denomination": "10 Chon", "series_year": "1988", "series_name": "Socialist Visitor Series", "series_range": "1988", "issue_year": "1988", "era": "1946_1989", "legal_status": "withdrawn", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "Central Bank of the Democratic People's Republic of Korea", "issuer_native": "\uc870\uc120\ubbfc\uc8fc\uc8fc\uc758\uc778\ubbfc\uacf5\ud654\uad6d \uc911\uc559\uc740\ud589", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "110x55", "watermark": null, "security_features": null, "color_palette": "#d4a5b0,#8b7355,#f5f0f0", "portrait_subject": null, "reverse_subject": null, "themes": null, "commemorative": false, "commemorative_occasion": null, "pick_number": "P-25", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "North Korean 10 chon note from the 1988 Socialist Visitor Series, issued for use by visitors from socialist countries. The Korean text '\uc2ed\uc804' (sipjeon) indicates 10 chon. These notes were part of a specialized currency system where different colored notes were issued for different categories of foreign visitors - socialist visitors received pink/red toned notes.", "back_description": "This appears to be a mismatched image showing a 5 chon note rather than the reverse of the 10 chon note. The Korean text '\uc624\uc804' indicates 5 chon, and the purple/violet color scheme differs from the olive/pink of the 10 chon front. This is a separate 5 chon note (P-24) from the same Socialist Visitor Series.", "historical_notes": "The 1988 North Korean visitor currency series was part of a complex foreign exchange certificate system. Three parallel series existed: red/pink notes for visitors from socialist/communist countries, blue notes for visitors from capitalist/Western countries, and green notes for convertible won used by diplomats. The chon fractional notes (1, 5, 10, 50 chon) supplemented larger won denominations. This system controlled foreign currency and prevented visitors from using regular domestic currency. The visitor won system was eventually phased out as North Korea's economy evolved.", "language_script": "Korean (Hangul)", "languages": "ko", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Appears crisp and uncirculated with sharp corners and no folds visible", "estimated_value_low": 0.25, "estimated_value_high": 1.0, "value_currency": "USD", "field_confidence": {"country": 0.95, "currency": 0.95, "denomination": 0.95, "series_name": 0.85, "series_year": 0.85, "issue_year": 0.85, "issuer": 0.9, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.7, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.8, "serial_number": 0.0, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.85}, "overall_confidence": 0.65, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.95, "currency": 0.95, "denomination": 0.95, "series_name": 0.85, "series_year": 0.85, "issue_year": 0.85, "issuer": 0.9, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.7, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.8, "serial_number": 0.0, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:52:07
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "North Korea",
    "currency": "KPW",
    "denomination": "5 Won (front) / 10 Won (back)",
    "series_year": "1988",
    "series_name": "1988 Won series",
    "series_range": "1988–1992",
    "issue_year": "1988",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1992",
    "predecessor_currency": null,
    "successor_currency": "Second Won",

    "issuer": "Central Bank of the Democratic People's Republic of Korea",
    "issuer_native": "조선민주주의인민공화국 중앙은행",
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": "intaglio,microprint",
    "color_palette": "#d4c5a8,#8b7355,#4a4a4a",

    "portrait_subject": null,
    "reverse_subject": null,
    "themes": "industry,architecture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,

    "front_description": "Supung Dam (Sup'ung Hydroelectric Power Station), one of the largest hydroelectric facilities in East Asia at the time of its construction in 1943. Located on the Yalu River between North Korea and China, the dam was a symbol of industrial development and featured prominently on North Korean currency. The infrastructure includes massive spillways, power transmission towers, and electrical transformers representing the nation's electrification efforts.",
    "back_description": "National emblem of the Democratic People's Republic of Korea at upper right, featuring a hydroelectric power station within a wreath of rice, surmounted by a red star. The denomination '10' appears in a central guilloche rosette. The text includes 'Foreign Exchange Certificate' (외화바꿈표) in Korean, indicating this is a special-use note. The year '1988' is printed at lower right, with the word '십전' (10 won) at the bottom.",
    "historical_notes": "This note exhibits a significant mismatch: the front displays a 5 Won denomination featuring the Supung Dam, while the back shows a 10 Won Foreign Exchange Certificate dated 1988. North Korea issued separate series of domestic currency and foreign exchange certificates (FEC) during this period, with FECs used in special shops and hotels for foreigners. The 1988 series was part of the first won monetary system (1947–1992), which was replaced during severe economic crisis. This mismatched pairing likely represents two different notes photographed together, not the front and back of a single note. The serial number '01 005351' on the back belongs to the 10 Won FEC.",
    "language_script": "Hangul (Korean script), Hanja numerals",
    "languages": "ko",

    "serial_number": "01 005351",
    "serial_prefix": "01",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "UNC",
    "condition_notes": "Both notes appear uncirculated with crisp paper and sharp corners",

    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 0.95,
      "series_name": 0.8,
      "series_year": 0.95,
      "issue_year": 0.95,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.9,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.85,
      "pick_number": 0.0,
      "serial_number": 0.95,
      "front_description": 0.9,
      "back_description": 0.9,
      "historical_notes": 0.85,
      "condition_grade": 0.9
    },
    "overall_confidence": 0.65,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "North Korea", "currency": "KPW", "denomination": "5 Won (front) / 10 Won (back)", "series_year": "1988", "series_name": "1988 Won series", "series_range": "1988\u20131992", "issue_year": "1988", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1992", "predecessor_currency": null, "successor_currency": "Second Won", "issuer": "Central Bank of the Democratic People's Republic of Korea", "issuer_native": "\uc870\uc120\ubbfc\uc8fc\uc8fc\uc758\uc778\ubbfc\uacf5\ud654\uad6d \uc911\uc559\uc740\ud589", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": "intaglio,microprint", "color_palette": "#d4c5a8,#8b7355,#4a4a4a", "portrait_subject": null, "reverse_subject": null, "themes": "industry,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "Supung Dam (Sup'ung Hydroelectric Power Station), one of the largest hydroelectric facilities in East Asia at the time of its construction in 1943. Located on the Yalu River between North Korea and China, the dam was a symbol of industrial development and featured prominently on North Korean currency. The infrastructure includes massive spillways, power transmission towers, and electrical transformers representing the nation's electrification efforts.", "back_description": "National emblem of the Democratic People's Republic of Korea at upper right, featuring a hydroelectric power station within a wreath of rice, surmounted by a red star. The denomination '10' appears in a central guilloche rosette. The text includes 'Foreign Exchange Certificate' (\uc678\ud654\ubc14\uafc8\ud45c) in Korean, indicating this is a special-use note. The year '1988' is printed at lower right, with the word '\uc2ed\uc804' (10 won) at the bottom.", "historical_notes": "This note exhibits a significant mismatch: the front displays a 5 Won denomination featuring the Supung Dam, while the back shows a 10 Won Foreign Exchange Certificate dated 1988. North Korea issued separate series of domestic currency and foreign exchange certificates (FEC) during this period, with FECs used in special shops and hotels for foreigners. The 1988 series was part of the first won monetary system (1947\u20131992), which was replaced during severe economic crisis. This mismatched pairing likely represents two different notes photographed together, not the front and back of a single note. The serial number '01 005351' on the back belongs to the 10 Won FEC.", "language_script": "Hangul (Korean script), Hanja numerals", "languages": "ko", "serial_number": "01 005351", "serial_prefix": "01", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Both notes appear uncirculated with crisp paper and sharp corners", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 0.95, "series_name": 0.8, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.0, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.85, "pick_number": 0.0, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.9}, "overall_confidence": 0.65, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 0.95, "series_name": 0.8, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.0, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.85, "pick_number": 0.0, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.9}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 06:52:07
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "North Korea",
    "currency": "KPW",
    "denomination": null,
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": null,
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": null,
    "color_palette": "#c8b8c0,#8b7080,#a8c8a0",

    "portrait_subject": null,
    "reverse_subject": null,
    "themes": null,
    "commemorative": null,
    "commemorative_occasion": null,

    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,

    "front_description": "The front image depicts a large hydroelectric dam with power transmission infrastructure, representing North Korea's emphasis on industrial development and energy self-sufficiency. The dam likely represents the Supung Dam or another major DPRK hydroelectric facility. The Korean text reads 'Democratic People's Republic of Korea Central Bank' (조선민주주의인민공화국 중앙은행). The national emblem featuring a hydroelectric dam within a wreath of rice appears at left.",
    "back_description": "The back image shows a 10 chon Foreign Exchange Certificate dated 1988, issued by the Foreign Trade Bank of the DPRK (조선민주주의인민공화국 무역은행). These certificates were used by foreigners in special shops. The design features a large ornamental rosette with denomination '10' and Korean text '십전' (10 chon).",
    "historical_notes": "CRITICAL: These two images are NOT the front and back of the same banknote. The first image appears to be a 5 won note from the Central Bank of the DPRK featuring industrial imagery. The second image is a 10 chon Foreign Exchange Certificate from 1988 issued by the Foreign Trade Bank. North Korea issued separate currency systems: regular won for domestic use and foreign exchange certificates for visitors. The FEC system was established in the 1980s to control foreign currency and restrict foreigners' purchasing to designated shops.",
    "language_script": "Korean (Hangul)",
    "languages": "ko",

    "serial_number": "0L 005351",
    "serial_prefix": "0L",
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,

    "condition_grade": "UNC",
    "condition_notes": "Both notes appear crisp with no folds, stains, or wear visible",

    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,

    "field_confidence": {
      "country": 0.95,
      "currency": 0.70,
      "denomination": 0.0,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 0.0,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.90,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.0,
      "pick_number": 0.0,
      "serial_number": 0.95,
      "front_description": 0.75,
      "back_description": 0.85,
      "historical_notes": 0.85,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.35,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "North Korea", "currency": "KPW", "denomination": null, "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": null, "legal_status": null, "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": null, "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": "#c8b8c0,#8b7080,#a8c8a0", "portrait_subject": null, "reverse_subject": null, "themes": null, "commemorative": null, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "The front image depicts a large hydroelectric dam with power transmission infrastructure, representing North Korea's emphasis on industrial development and energy self-sufficiency. The dam likely represents the Supung Dam or another major DPRK hydroelectric facility. The Korean text reads 'Democratic People's Republic of Korea Central Bank' (\uc870\uc120\ubbfc\uc8fc\uc8fc\uc758\uc778\ubbfc\uacf5\ud654\uad6d \uc911\uc559\uc740\ud589). The national emblem featuring a hydroelectric dam within a wreath of rice appears at left.", "back_description": "The back image shows a 10 chon Foreign Exchange Certificate dated 1988, issued by the Foreign Trade Bank of the DPRK (\uc870\uc120\ubbfc\uc8fc\uc8fc\uc758\uc778\ubbfc\uacf5\ud654\uad6d \ubb34\uc5ed\uc740\ud589). These certificates were used by foreigners in special shops. The design features a large ornamental rosette with denomination '10' and Korean text '\uc2ed\uc804' (10 chon).", "historical_notes": "CRITICAL: These two images are NOT the front and back of the same banknote. The first image appears to be a 5 won note from the Central Bank of the DPRK featuring industrial imagery. The second image is a 10 chon Foreign Exchange Certificate from 1988 issued by the Foreign Trade Bank. North Korea issued separate currency systems: regular won for domestic use and foreign exchange certificates for visitors. The FEC system was established in the 1980s to control foreign currency and restrict foreigners' purchasing to designated shops.", "language_script": "Korean (Hangul)", "languages": "ko", "serial_number": "0L 005351", "serial_prefix": "0L", "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Both notes appear crisp with no folds, stains, or wear visible", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.95, "currency": 0.7, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.95, "front_description": 0.75, "back_description": 0.85, "historical_notes": 0.85, "condition_grade": 0.85}, "overall_confidence": 0.35, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.95, "currency": 0.7, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.95, "front_description": 0.75, "back_description": 0.85, "historical_notes": 0.85, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:52:12
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "North Korea",
    "currency": "KPW",
    "denomination": "5 won (front) / 1 won (back)",
    "series_year": "1988",
    "series_name": "Socialist Visitors Exchange Certificate Series",
    "series_range": "1988-1992",
    "issue_year": "1988",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1992",
    "predecessor_currency": null,
    "successor_currency": "Won (standard currency)",

    "issuer": "Foreign Trade Bank of the Democratic People's Republic of Korea",
    "issuer_native": "조선민주주의인민공화국 무역은행",
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": "guilloche_patterns,microprint",
    "color_palette": "#d89090,#f5deb3,#8b4545",

    "portrait_subject": null,
    "reverse_subject": null,
    "themes": "state_emblem",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "scarce",

    "front_description": "State emblem of the Democratic People's Republic of Korea at upper right, featuring a hydroelectric dam, revolutionary site, and rice sheaf surrounded by red ribbon inscribed with the state name. The text 외화와 바꾼 돈표 (Foreign Exchange Certificate) appears vertically on the right, with 조선민주주의인민공화국 무역은행 (Foreign Trade Bank of the DPRK) below. These special certificates were issued for foreign visitors and used in hard-currency shops; they were not legal tender for North Korean citizens and circulated parallel to the standard won.",
    "back_description": "State emblem of the Democratic People's Republic of Korea at upper right, identical to the front. The denomination shown is 1 won, not 5 won as on the front - indicating a mismatched pair of notes. The same vertical text 외화와 바꾼 돈표 (Foreign Exchange Certificate) and issuer name appear as on the 5 won front.",
    "historical_notes": "This represents a mismatched pair: the front is from a 5 won Foreign Exchange Certificate (serial ㅍA 005366), the back from a 1 won certificate (serial ㅍO 010047), both dated 1988. North Korea issued these special certificates (chonhwacertificates) for foreign visitors and diplomats from 1979 until the early 1990s as part of a dual-currency system. Foreigners were required to use these certificates rather than standard won, and they could only be spent in designated Friendship Stores and hard-currency shops. The system was designed to capture foreign exchange and separate the foreign economy from the domestic one. The series was withdrawn around 1992 when the system was reformed. These certificates are now collectible but were never part of the standard DPRK currency circulation available to citizens.",
    "language_script": "Hangul (Korean script)",
    "languages": "ko",

    "serial_number": null,
    "serial_prefix": "ㅍA / ㅍO",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "UNC",
    "condition_notes": "Appears uncirculated with sharp corners and no visible wear",

    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,

    "field_confidence": {
      "country": 1.0,
      "currency": 0.95,
      "denomination": 0.95,
      "series_name": 0.85,
      "series_year": 0.95,
      "issue_year": 0.95,
      "issuer": 0.95,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.9,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.9,
      "back_description": 0.9,
      "historical_notes": 0.85,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.7,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "North Korea", "currency": "KPW", "denomination": "5 won (front) / 1 won (back)", "series_year": "1988", "series_name": "Socialist Visitors Exchange Certificate Series", "series_range": "1988-1992", "issue_year": "1988", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1992", "predecessor_currency": null, "successor_currency": "Won (standard currency)", "issuer": "Foreign Trade Bank of the Democratic People's Republic of Korea", "issuer_native": "\uc870\uc120\ubbfc\uc8fc\uc8fc\uc758\uc778\ubbfc\uacf5\ud654\uad6d \ubb34\uc5ed\uc740\ud589", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": "guilloche_patterns,microprint", "color_palette": "#d89090,#f5deb3,#8b4545", "portrait_subject": null, "reverse_subject": null, "themes": "state_emblem", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": "scarce", "front_description": "State emblem of the Democratic People's Republic of Korea at upper right, featuring a hydroelectric dam, revolutionary site, and rice sheaf surrounded by red ribbon inscribed with the state name. The text \uc678\ud654\uc640 \ubc14\uafbc \ub3c8\ud45c (Foreign Exchange Certificate) appears vertically on the right, with \uc870\uc120\ubbfc\uc8fc\uc8fc\uc758\uc778\ubbfc\uacf5\ud654\uad6d \ubb34\uc5ed\uc740\ud589 (Foreign Trade Bank of the DPRK) below. These special certificates were issued for foreign visitors and used in hard-currency shops; they were not legal tender for North Korean citizens and circulated parallel to the standard won.", "back_description": "State emblem of the Democratic People's Republic of Korea at upper right, identical to the front. The denomination shown is 1 won, not 5 won as on the front - indicating a mismatched pair of notes. The same vertical text \uc678\ud654\uc640 \ubc14\uafbc \ub3c8\ud45c (Foreign Exchange Certificate) and issuer name appear as on the 5 won front.", "historical_notes": "This represents a mismatched pair: the front is from a 5 won Foreign Exchange Certificate (serial \u314dA 005366), the back from a 1 won certificate (serial \u314dO 010047), both dated 1988. North Korea issued these special certificates (chonhwacertificates) for foreign visitors and diplomats from 1979 until the early 1990s as part of a dual-currency system. Foreigners were required to use these certificates rather than standard won, and they could only be spent in designated Friendship Stores and hard-currency shops. The system was designed to capture foreign exchange and separate the foreign economy from the domestic one. The series was withdrawn around 1992 when the system was reformed. These certificates are now collectible but were never part of the standard DPRK currency circulation available to citizens.", "language_script": "Hangul (Korean script)", "languages": "ko", "serial_number": null, "serial_prefix": "\u314dA / \u314dO", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Appears uncirculated with sharp corners and no visible wear", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 1.0, "currency": 0.95, "denomination": 0.95, "series_name": 0.85, "series_year": 0.95, "issue_year": 0.95, "issuer": 0.95, "signatures": 0.0, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.85}, "overall_confidence": 0.7, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 1.0, "currency": 0.95, "denomination": 0.95, "series_name": 0.85, "series_year": 0.95, "issue_year": 0.95, "issuer": 0.95, "signatures": 0.0, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.85}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 06:52:12
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "North Korea",
    "currency": "KPW",
    "denomination": "5 Chon",
    "series_year": "1988",
    "series_name": "Foreign Exchange Certificate - Socialist Visitors",
    "series_range": "1988–2002",
    "issue_year": "1988",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "2002",
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": "Foreign Trade Bank of the Democratic People's Republic of Korea",
    "issuer_native": "조선민주주의인민공화국 무역은행",
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "110x55",
    "watermark": null,
    "security_features": null,
    "color_palette": "#c85a5a,#f5e6e6,#8b4a4a",

    "portrait_subject": null,
    "reverse_subject": null,
    "themes": "industry",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-32",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "North Korean Foreign Exchange Certificate for 5 chon, issued by the Foreign Trade Bank of the DPRK for use by visitors from socialist countries. Features the national emblem of North Korea (depicting Mount Paektu with a hydroelectric dam, a red star, and rice ears bound with a red ribbon) at upper right. The header text '외화와 바꾼 돈 표' indicates 'money exchanged for foreign currency'. This red-tinted note was part of a parallel currency system restricting foreigners' purchasing power.",

    "back_description": "The second image shows a different denomination (1 chon) from the same series, indicating a mismatched pair. This 1 chon note bears identical design elements: the DPRK national emblem, Foreign Trade Bank issuer text, and 1988 date, but with denomination '1' in the central rosette and '일전' (1 chon) at lower right.",

    "historical_notes": "North Korea operated a complex foreign exchange certificate (FEC) system from 1988 to 2002, with different colored notes for different visitor categories: red/pink for visitors from socialist countries, blue for visitors from capitalist countries, and green for DPRK citizens with foreign currency. These certificates had no value outside designated shops and were part of the regime's isolation of foreigners from the domestic economy. The socialist-visitor series (pink/red) was typically used by visitors from China, the Soviet Union, and other aligned nations. The system was abolished in 2002 when the won was revalued.",

    "language_script": "Hangul (Chosŏn'gŭl)",
    "languages": "ko",

    "serial_number": "ㅍㅅ 005366",
    "serial_prefix": "ㅍㅅ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "UNC",
    "condition_notes": "Appears crisp and uncirculated with full original color and sharp corners",

    "estimated_value_low": 0.50,
    "estimated_value_high": 2.00,
    "value_currency": "USD",

    "field_confidence": {
      "country": 0.98,
      "currency": 0.95,
      "denomination": 0.98,
      "series_name": 0.90,
      "series_year": 0.98,
      "issue_year": 0.98,
      "issuer": 0.95,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.70,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.0,
      "pick_number": 0.85,
      "serial_number": 0.90,
      "front_description": 0.92,
      "back_description": 0.95,
      "historical_notes": 0.88,
      "condition_grade": 0.90
    },
    "overall_confidence": 0.75,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "North Korea", "currency": "KPW", "denomination": "5 Chon", "series_year": "1988", "series_name": "Foreign Exchange Certificate - Socialist Visitors", "series_range": "1988\u20132002", "issue_year": "1988", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "2002", "predecessor_currency": null, "successor_currency": null, "issuer": "Foreign Trade Bank of the Democratic People's Republic of Korea", "issuer_native": "\uc870\uc120\ubbfc\uc8fc\uc8fc\uc758\uc778\ubbfc\uacf5\ud654\uad6d \ubb34\uc5ed\uc740\ud589", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "110x55", "watermark": null, "security_features": null, "color_palette": "#c85a5a,#f5e6e6,#8b4a4a", "portrait_subject": null, "reverse_subject": null, "themes": "industry", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-32", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "North Korean Foreign Exchange Certificate for 5 chon, issued by the Foreign Trade Bank of the DPRK for use by visitors from socialist countries. Features the national emblem of North Korea (depicting Mount Paektu with a hydroelectric dam, a red star, and rice ears bound with a red ribbon) at upper right. The header text '\uc678\ud654\uc640 \ubc14\uafbc \ub3c8 \ud45c' indicates 'money exchanged for foreign currency'. This red-tinted note was part of a parallel currency system restricting foreigners' purchasing power.", "back_description": "The second image shows a different denomination (1 chon) from the same series, indicating a mismatched pair. This 1 chon note bears identical design elements: the DPRK national emblem, Foreign Trade Bank issuer text, and 1988 date, but with denomination '1' in the central rosette and '\uc77c\uc804' (1 chon) at lower right.", "historical_notes": "North Korea operated a complex foreign exchange certificate (FEC) system from 1988 to 2002, with different colored notes for different visitor categories: red/pink for visitors from socialist countries, blue for visitors from capitalist countries, and green for DPRK citizens with foreign currency. These certificates had no value outside designated shops and were part of the regime's isolation of foreigners from the domestic economy. The socialist-visitor series (pink/red) was typically used by visitors from China, the Soviet Union, and other aligned nations. The system was abolished in 2002 when the won was revalued.", "language_script": "Hangul (Chos\u014fn'g\u016dl)", "languages": "ko", "serial_number": "\u314d\u3145 005366", "serial_prefix": "\u314d\u3145", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Appears crisp and uncirculated with full original color and sharp corners", "estimated_value_low": 0.5, "estimated_value_high": 2.0, "value_currency": "USD", "field_confidence": {"country": 0.98, "currency": 0.95, "denomination": 0.98, "series_name": 0.9, "series_year": 0.98, "issue_year": 0.98, "issuer": 0.95, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.7, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.85, "serial_number": 0.9, "front_description": 0.92, "back_description": 0.95, "historical_notes": 0.88, "condition_grade": 0.9}, "overall_confidence": 0.75, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.98, "currency": 0.95, "denomination": 0.98, "series_name": 0.9, "series_year": 0.98, "issue_year": 0.98, "issuer": 0.95, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.7, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.85, "serial_number": 0.9, "front_description": 0.92, "back_description": 0.95, "historical_notes": 0.88, "condition_grade": 0.9}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:52:16
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "North Korea",
    "currency": "KPW",
    "denomination": "5 Won",
    "series_year": "2002",
    "series_name": "2002 series",
    "series_range": "2002–present",
    "issue_year": "2002",
    "era": "1990_present",
    "legal_status": "in_circulation",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": "Central Bank of the Democratic People's Republic of Korea",
    "issuer_native": "조선민주주의인민공화국 중앙은행",
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "140x65",
    "watermark": null,
    "security_features": "microprint,intaglio,latent_image",
    "color_palette": "#f5deb3,#c19a6b,#8b4513",

    "portrait_subject": "Student and worker",
    "reverse_subject": "Student and worker",
    "themes": "education,industry,science",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "CS11",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Trial specimen note ('시용설명서' / trial explanation note) for the 2002 series 10,000 won denomination, displaying Korean-language instructions and authentication features. This is a demonstration piece showing how to validate genuine currency of the Democratic People's Republic of Korea, with text explaining verification procedures and penalty clauses for counterfeiting ('사용권의 녀 리자는 4%이며' referencing interest rates, and warnings about unauthorized reproduction under criminal law).",
    "back_description": "Student and worker depicted side by side, representing the alliance of intellectuals and laborers central to North Korean state ideology. The student wears glasses and the worker is shown in working attire. Behind them are symbols of scientific and industrial progress including an atomic symbol, representing the DPRK's emphasis on science, technology, and industrial development. This pairing has been a consistent motif in North Korean currency since the socialist period, embodying the 'worker-peasant-intellectual' alliance.",
    "historical_notes": "This is a specimen or trial note ('건 본' visible in red overprint, meaning 'specimen') from North Korea's 2002 currency series, which introduced updated designs while maintaining traditional socialist iconography. The serial numbers '라ㄷ 0000000' are specimen zeros. The 2002 series represented a redenomination period following economic difficulties in the 1990s. North Korea has issued several currency reforms, including major redenominations in 2009. The text on the front is a trial/specimen explanation sheet showing authentication instructions that would be circulated to businesses and officials. The year '주체91' visible references the Juche calendar (Juche 91 = 2002 CE, counting from Kim Il-sung's birth year 1912). The actual circulating 5 won note from this series would have standard front and back designs, not this specimen/trial format.",
    "language_script": "Korean (Hangul)",
    "languages": "ko",

    "serial_number": "라ㄷ 0000000",
    "serial_prefix": "라ㄷ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "UNC",
    "condition_notes": "Specimen/trial note in uncirculated condition with full specimen overprints",

    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 0.7,
      "series_name": 0.95,
      "series_year": 0.95,
      "issue_year": 0.95,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.9,
      "dimensions_mm": 0.8,
      "watermark": 0.0,
      "portrait_subject": 0.85,
      "reverse_subject": 0.85,
      "pick_number": 0.75,
      "serial_number": 0.95,
      "front_description": 0.85,
      "back_description": 0.9,
      "historical_notes": 0.85,
      "condition_grade": 0.95
    },
    "overall_confidence": 0.85,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "North Korea", "currency": "KPW", "denomination": "5 Won", "series_year": "2002", "series_name": "2002 series", "series_range": "2002\u2013present", "issue_year": "2002", "era": "1990_present", "legal_status": "in_circulation", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "Central Bank of the Democratic People's Republic of Korea", "issuer_native": "\uc870\uc120\ubbfc\uc8fc\uc8fc\uc758\uc778\ubbfc\uacf5\ud654\uad6d \uc911\uc559\uc740\ud589", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "140x65", "watermark": null, "security_features": "microprint,intaglio,latent_image", "color_palette": "#f5deb3,#c19a6b,#8b4513", "portrait_subject": "Student and worker", "reverse_subject": "Student and worker", "themes": "education,industry,science", "commemorative": false, "commemorative_occasion": null, "pick_number": "CS11", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Trial specimen note ('\uc2dc\uc6a9\uc124\uba85\uc11c' / trial explanation note) for the 2002 series 10,000 won denomination, displaying Korean-language instructions and authentication features. This is a demonstration piece showing how to validate genuine currency of the Democratic People's Republic of Korea, with text explaining verification procedures and penalty clauses for counterfeiting ('\uc0ac\uc6a9\uad8c\uc758 \ub140 \ub9ac\uc790\ub294 4%\uc774\uba70' referencing interest rates, and warnings about unauthorized reproduction under criminal law).", "back_description": "Student and worker depicted side by side, representing the alliance of intellectuals and laborers central to North Korean state ideology. The student wears glasses and the worker is shown in working attire. Behind them are symbols of scientific and industrial progress including an atomic symbol, representing the DPRK's emphasis on science, technology, and industrial development. This pairing has been a consistent motif in North Korean currency since the socialist period, embodying the 'worker-peasant-intellectual' alliance.", "historical_notes": "This is a specimen or trial note ('\uac74 \ubcf8' visible in red overprint, meaning 'specimen') from North Korea's 2002 currency series, which introduced updated designs while maintaining traditional socialist iconography. The serial numbers '\ub77c\u3137 0000000' are specimen zeros. The 2002 series represented a redenomination period following economic difficulties in the 1990s. North Korea has issued several currency reforms, including major redenominations in 2009. The text on the front is a trial/specimen explanation sheet showing authentication instructions that would be circulated to businesses and officials. The year '\uc8fc\uccb491' visible references the Juche calendar (Juche 91 = 2002 CE, counting from Kim Il-sung's birth year 1912). The actual circulating 5 won note from this series would have standard front and back designs, not this specimen/trial format.", "language_script": "Korean (Hangul)", "languages": "ko", "serial_number": "\ub77c\u3137 0000000", "serial_prefix": "\ub77c\u3137", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Specimen/trial note in uncirculated condition with full specimen overprints", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 0.7, "series_name": 0.95, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.0, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.8, "watermark": 0.0, "portrait_subject": 0.85, "reverse_subject": 0.85, "pick_number": 0.75, "serial_number": 0.95, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.95}, "overall_confidence": 0.85, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 0.7, "series_name": 0.95, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.0, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.8, "watermark": 0.0, "portrait_subject": 0.85, "reverse_subject": 0.85, "pick_number": 0.75, "serial_number": 0.95, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.95}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 06:52:16
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "North Korea",
    "currency": "KPW",
    "denomination": "5",
    "series_year": "2002",
    "series_name": "2002 Series",
    "series_range": "2002–2009",
    "issue_year": "2002",
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": "2009",
    "predecessor_currency": null,
    "successor_currency": "North Korean won (2009 redenomination)",

    "issuer": "Central Bank of the Democratic People's Republic of Korea",
    "issuer_native": "조선민주주의인민공화국 중앙은행",
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "145x70",
    "watermark": "Chollima (winged horse)",
    "security_features": "microprint,intaglio,latent_image",
    "color_palette": "#8B7355,#4A4A4A,#C4B8A0",

    "portrait_subject": "Scientists/intellectuals (anonymous symbolic figures)",
    "reverse_subject": null,
    "themes": "scientist,industry,science",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-58s",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "This is an attached savings bond certificate (사용설명서 - Instructions for Use) for 10,000 won showing terms and conditions in Korean. The certificate explains that this credit bond can be purchased or transferred at any Central Bank branch, carries a 4% annual interest rate, and interest is calculated from the purchase date with a 1-year cycle. The ornate guilloché pattern features security rosettes typical of North Korean financial instruments.",
    "back_description": "Two symbolic figures representing North Korean scientists and intellectuals - a man wearing glasses in a suit and a woman in traditional attire - depicted against a background featuring an atomic symbol representing nuclear science and technological advancement. The state emblem of North Korea (featuring Mount Paektu, a hydroelectric dam, and a red star) appears at upper left. Text reads 'Democratic People's Republic of Korea Central Bank' with date 'Juche 91' (2002). The red overprint '견본' (SPECIMEN) indicates this is a specimen note. Serial numbers show '0000000' confirming specimen status.",
    "historical_notes": "This is a SPECIMEN note from North Korea's 2002 currency series, evidenced by the '견본' (specimen) overprint and all-zero serial numbers. The images appear to be mismatched: the front shows a 10,000 won savings bond certificate while the back shows a 5 won banknote. The 2002 series was issued in Juche year 91 and remained in circulation until the disastrous 2009 currency redenomination, which caused significant economic hardship. The atomic symbol on the note reflects North Korea's emphasis on nuclear technology. This series was replaced when 100 old won were exchanged for 1 new won in November 2009.",
    "language_script": "Korean (Hangul)",
    "languages": "ko",

    "serial_number": "ㄹㄷ 0000000",
    "serial_prefix": "ㄹㄷ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "UNC",
    "condition_notes": "Specimen note in uncirculated condition with sharp corners and no folds",

    "estimated_value_low": 3,
    "estimated_value_high": 10,
    "value_currency": "USD",

    "field_confidence": {
      "country": 0.98,
      "currency": 0.95,
      "denomination": 0.70,
      "series_name": 0.85,
      "series_year": 0.95,
      "issue_year": 0.95,
      "issuer": 0.95,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.90,
      "dimensions_mm": 0.70,
      "watermark": 0.65,
      "portrait_subject": 0.75,
      "reverse_subject": 0.0,
      "pick_number": 0.60,
      "serial_number": 0.95,
      "front_description": 0.85,
      "back_description": 0.90,
      "historical_notes": 0.85,
      "condition_grade": 0.95
    },
    "overall_confidence": 0.65,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "North Korea", "currency": "KPW", "denomination": "5", "series_year": "2002", "series_name": "2002 Series", "series_range": "2002\u20132009", "issue_year": "2002", "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": "2009", "predecessor_currency": null, "successor_currency": "North Korean won (2009 redenomination)", "issuer": "Central Bank of the Democratic People's Republic of Korea", "issuer_native": "\uc870\uc120\ubbfc\uc8fc\uc8fc\uc758\uc778\ubbfc\uacf5\ud654\uad6d \uc911\uc559\uc740\ud589", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "145x70", "watermark": "Chollima (winged horse)", "security_features": "microprint,intaglio,latent_image", "color_palette": "#8B7355,#4A4A4A,#C4B8A0", "portrait_subject": "Scientists/intellectuals (anonymous symbolic figures)", "reverse_subject": null, "themes": "scientist,industry,science", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-58s", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "This is an attached savings bond certificate (\uc0ac\uc6a9\uc124\uba85\uc11c - Instructions for Use) for 10,000 won showing terms and conditions in Korean. The certificate explains that this credit bond can be purchased or transferred at any Central Bank branch, carries a 4% annual interest rate, and interest is calculated from the purchase date with a 1-year cycle. The ornate guilloch\u00e9 pattern features security rosettes typical of North Korean financial instruments.", "back_description": "Two symbolic figures representing North Korean scientists and intellectuals - a man wearing glasses in a suit and a woman in traditional attire - depicted against a background featuring an atomic symbol representing nuclear science and technological advancement. The state emblem of North Korea (featuring Mount Paektu, a hydroelectric dam, and a red star) appears at upper left. Text reads 'Democratic People's Republic of Korea Central Bank' with date 'Juche 91' (2002). The red overprint '\uacac\ubcf8' (SPECIMEN) indicates this is a specimen note. Serial numbers show '0000000' confirming specimen status.", "historical_notes": "This is a SPECIMEN note from North Korea's 2002 currency series, evidenced by the '\uacac\ubcf8' (specimen) overprint and all-zero serial numbers. The images appear to be mismatched: the front shows a 10,000 won savings bond certificate while the back shows a 5 won banknote. The 2002 series was issued in Juche year 91 and remained in circulation until the disastrous 2009 currency redenomination, which caused significant economic hardship. The atomic symbol on the note reflects North Korea's emphasis on nuclear technology. This series was replaced when 100 old won were exchanged for 1 new won in November 2009.", "language_script": "Korean (Hangul)", "languages": "ko", "serial_number": "\u3139\u3137 0000000", "serial_prefix": "\u3139\u3137", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Specimen note in uncirculated condition with sharp corners and no folds", "estimated_value_low": 3, "estimated_value_high": 10, "value_currency": "USD", "field_confidence": {"country": 0.98, "currency": 0.95, "denomination": 0.7, "series_name": 0.85, "series_year": 0.95, "issue_year": 0.95, "issuer": 0.95, "signatures": 0.0, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.7, "watermark": 0.65, "portrait_subject": 0.75, "reverse_subject": 0.0, "pick_number": 0.6, "serial_number": 0.95, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.95}, "overall_confidence": 0.65, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.98, "currency": 0.95, "denomination": 0.7, "series_name": 0.85, "series_year": 0.95, "issue_year": 0.95, "issuer": 0.95, "signatures": 0.0, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.7, "watermark": 0.65, "portrait_subject": 0.75, "reverse_subject": 0.0, "pick_number": 0.6, "serial_number": 0.95, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.95}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:52:41
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Oman",
    "currency": "OMR",
    "denomination": "100 Baisa",
    "series_year": "1995",
    "series_name": "Fourth series",
    "series_range": "1995-2000",
    "issue_year": "1995",
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": "2008",
    "predecessor_currency": null,
    "successor_currency": "Omani Rial (continued, baisa notes withdrawn)",

    "issuer": "Central Bank of Oman",
    "issuer_native": "البنك المركزي العماني",
    "signatures": null,
    "printer": "Thomas De La Rue",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "147x70",
    "watermark": "Sultan Qaboos bin Said in clear field at left",
    "security_features": "thread,microprint,intaglio",
    "color_palette": "#c8585f,#f5e6d3,#4a7c7c",

    "portrait_subject": "Sultan Qaboos bin Said",
    "reverse_subject": "Oasis with falaj irrigation system",
    "themes": "monarch,agriculture,architecture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "31",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Sultan Qaboos bin Said al-Said (1940–2020), Sultan of Oman from 1970 to 2020. He deposed his father in a palace coup and modernized Oman, ending the Dhofar Rebellion, abolishing slavery, and using oil revenues to build infrastructure and education. He is commemorated on Omani currency as the architect of modern Oman. The front shows the denomination '1' in Korean Hangul script ('일전', meaning 'one jeon'), which appears to be a mismatched element—this is actually an Omani 100 Baisa note with Arabic script, not Korean. The visible Arabic text reads 'مائة بيسة' (one hundred baisa).",
    "back_description": "Sultan Qaboos bin Said al-Said wearing traditional Omani dress and turban. The inscription at top reads 'البنك المركزي العماني' (Central Bank of Oman), with denomination 'مائة بيسة' (one hundred baisa). The left side features a traditional Omani oasis scene with date palms and a falaj (traditional irrigation system), representing Oman's agricultural heritage and ancient water management systems that are UNESCO World Heritage sites. The national emblem of Oman (crossed khanjar daggers and sword) appears at upper left. Date printed as '1416 هـ / 1995 م' (1416 AH / 1995 CE).",
    "historical_notes": "This 100 Baisa note belongs to the fourth series of Omani currency issued in 1995 by the Central Bank of Oman. The Omani Rial is divided into 1000 baisa. Small denomination baisa notes (including 100 and 200 baisa) were gradually withdrawn from circulation in the 2000s as coins replaced them; by 2008 most baisa notes had been demonetized. The 1995 series featured enhanced security features and continued the tradition of honouring Sultan Qaboos, who ruled for 50 years until his death in 2020. Printed by Thomas De La Rue of London. Serial number visible: ج/٢٠٢٢٢٦٧١٥ (J/20222671[5]).",
    "language_script": "Arabic",
    "languages": "ar,en",

    "serial_number": "ج/٢٠٢٢٢٦٧١٥",
    "serial_prefix": "ج",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "UNC",
    "condition_notes": null,

    "estimated_value_low": 1,
    "estimated_value_high": 5,
    "value_currency": "USD",

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.9,
      "series_year": 0.95,
      "issue_year": 0.95,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.9,
      "material": 0.95,
      "dimensions_mm": 0.9,
      "watermark": 0.95,
      "portrait_subject": 1.0,
      "reverse_subject": 0.9,
      "pick_number": 0.95,
      "serial_number": 0.85,
      "front_description": 0.7,
      "back_description": 0.95,
      "historical_notes": 0.9,
      "condition_grade": 0.9
    },
    "overall_confidence": 0.92,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Oman", "currency": "OMR", "denomination": "100 Baisa", "series_year": "1995", "series_name": "Fourth series", "series_range": "1995-2000", "issue_year": "1995", "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": "2008", "predecessor_currency": null, "successor_currency": "Omani Rial (continued, baisa notes withdrawn)", "issuer": "Central Bank of Oman", "issuer_native": "\u0627\u0644\u0628\u0646\u0643 \u0627\u0644\u0645\u0631\u0643\u0632\u064a \u0627\u0644\u0639\u0645\u0627\u0646\u064a", "signatures": null, "printer": "Thomas De La Rue", "engraver": null, "material": "paper", "dimensions_mm": "147x70", "watermark": "Sultan Qaboos bin Said in clear field at left", "security_features": "thread,microprint,intaglio", "color_palette": "#c8585f,#f5e6d3,#4a7c7c", "portrait_subject": "Sultan Qaboos bin Said", "reverse_subject": "Oasis with falaj irrigation system", "themes": "monarch,agriculture,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": "31", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Sultan Qaboos bin Said al-Said (1940\u20132020), Sultan of Oman from 1970 to 2020. He deposed his father in a palace coup and modernized Oman, ending the Dhofar Rebellion, abolishing slavery, and using oil revenues to build infrastructure and education. He is commemorated on Omani currency as the architect of modern Oman. The front shows the denomination '1' in Korean Hangul script ('\uc77c\uc804', meaning 'one jeon'), which appears to be a mismatched element\u2014this is actually an Omani 100 Baisa note with Arabic script, not Korean. The visible Arabic text reads '\u0645\u0627\u0626\u0629 \u0628\u064a\u0633\u0629' (one hundred baisa).", "back_description": "Sultan Qaboos bin Said al-Said wearing traditional Omani dress and turban. The inscription at top reads '\u0627\u0644\u0628\u0646\u0643 \u0627\u0644\u0645\u0631\u0643\u0632\u064a \u0627\u0644\u0639\u0645\u0627\u0646\u064a' (Central Bank of Oman), with denomination '\u0645\u0627\u0626\u0629 \u0628\u064a\u0633\u0629' (one hundred baisa). The left side features a traditional Omani oasis scene with date palms and a falaj (traditional irrigation system), representing Oman's agricultural heritage and ancient water management systems that are UNESCO World Heritage sites. The national emblem of Oman (crossed khanjar daggers and sword) appears at upper left. Date printed as '1416 \u0647\u0640 / 1995 \u0645' (1416 AH / 1995 CE).", "historical_notes": "This 100 Baisa note belongs to the fourth series of Omani currency issued in 1995 by the Central Bank of Oman. The Omani Rial is divided into 1000 baisa. Small denomination baisa notes (including 100 and 200 baisa) were gradually withdrawn from circulation in the 2000s as coins replaced them; by 2008 most baisa notes had been demonetized. The 1995 series featured enhanced security features and continued the tradition of honouring Sultan Qaboos, who ruled for 50 years until his death in 2020. Printed by Thomas De La Rue of London. Serial number visible: \u062c/\u0662\u0660\u0662\u0662\u0662\u0666\u0667\u0661\u0665 (J/20222671[5]).", "language_script": "Arabic", "languages": "ar,en", "serial_number": "\u062c/\u0662\u0660\u0662\u0662\u0662\u0666\u0667\u0661\u0665", "serial_prefix": "\u062c", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": null, "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.9, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.0, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.95, "portrait_subject": 1.0, "reverse_subject": 0.9, "pick_number": 0.95, "serial_number": 0.85, "front_description": 0.7, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.9}, "overall_confidence": 0.92, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.9, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.0, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.95, "portrait_subject": 1.0, "reverse_subject": 0.9, "pick_number": 0.95, "serial_number": 0.85, "front_description": 0.7, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.9}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 06:52:41
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": null,
    "denomination": null,
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": null,
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": null,
    "dimensions_mm": null,
    "watermark": null,
    "security_features": null,
    "color_palette": null,

    "portrait_subject": null,
    "reverse_subject": null,
    "themes": null,
    "commemorative": null,
    "commemorative_occasion": null,

    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,

    "front_description": null,
    "back_description": null,
    "historical_notes": "The two images provided appear to be from entirely different banknotes. The front image shows a North Korean 1 Chon note (일전 in Korean Hangul) with red/pink coloring and geometric guilloche patterns, part of the 1988 socialist visitor/foreign exchange certificate series. The back image shows an Omani 100 Baisa note featuring Sultan Qaboos bin Said, dated 1995 (1416 AH), issued by the Central Bank of Oman. These are clearly not the front and back of the same banknote - they are from different countries, different currencies, different denominations, and different eras entirely.",
    "language_script": null,
    "languages": null,

    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,

    "condition_grade": null,
    "condition_notes": "Cannot grade - mismatched pair of banknotes from different countries",

    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,

    "field_confidence": {
      "country": 0.0,
      "currency": 0.0,
      "denomination": 0.0,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 0.0,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.0,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.0,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.0,
      "back_description": 0.0,
      "historical_notes": 0.95,
      "condition_grade": 0.0
    },
    "overall_confidence": 0.1,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": null, "currency": null, "denomination": null, "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": null, "legal_status": null, "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": null, "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": null, "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": null, "portrait_subject": null, "reverse_subject": null, "themes": null, "commemorative": null, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": null, "back_description": null, "historical_notes": "The two images provided appear to be from entirely different banknotes. The front image shows a North Korean 1 Chon note (\uc77c\uc804 in Korean Hangul) with red/pink coloring and geometric guilloche patterns, part of the 1988 socialist visitor/foreign exchange certificate series. The back image shows an Omani 100 Baisa note featuring Sultan Qaboos bin Said, dated 1995 (1416 AH), issued by the Central Bank of Oman. These are clearly not the front and back of the same banknote - they are from different countries, different currencies, different denominations, and different eras entirely.", "language_script": null, "languages": null, "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": null, "condition_notes": "Cannot grade - mismatched pair of banknotes from different countries", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.0, "currency": 0.0, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.0, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.0, "back_description": 0.0, "historical_notes": 0.95, "condition_grade": 0.0}, "overall_confidence": 0.1, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.0, "currency": 0.0, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.0, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.0, "back_description": 0.0, "historical_notes": 0.95, "condition_grade": 0.0}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:53:17
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Pakistan",
    "currency": "PKR",
    "denomination": "10 Rupees",
    "series_year": null,
    "series_name": null,
    "series_range": "1976-1984",
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "State Bank of Pakistan",
    "issuer_native": "بینک دولت پاکستان",
    "signatures": null,
    "printer": null,
    "engraver": null,
    "material": "paper",
    "dimensions_mm": "157x65",
    "watermark": "Muhammad Ali Jinnah portrait",
    "security_features": "watermark,intaglio",
    "color_palette": "#8b7d6b,#d4c5a9,#5a6b4d",
    "portrait_subject": "Muhammad Ali Jinnah",
    "reverse_subject": "Mohenjo-daro archaeological site",
    "themes": "statesman,architecture,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": "28",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",
    "front_description": "Mohenjo-daro, one of the major cities of the ancient Indus Valley Civilization (circa 2500–1900 BCE), located in Sindh province, Pakistan. The ruins represent one of the earliest major urban settlements in the world and a UNESCO World Heritage Site; the depiction shows the Great Bath and residential structures of this Bronze Age city, emphasizing Pakistan's ancient cultural heritage.",
    "back_description": "Muhammad Ali Jinnah (1876–1948), founder of Pakistan and its first Governor-General, widely known as Quaid-e-Azam (Great Leader). A barrister and statesman who led the All-India Muslim League and the Pakistan Movement, achieving the creation of Pakistan as an independent nation in 1947; he is the most honoured figure in Pakistani history and appears on all denominations of Pakistani currency.",
    "historical_notes": "This note belongs to the State Bank of Pakistan series issued from 1976 to 1984 following the 1971 redesign that removed Bengali script after the independence of Bangladesh. The design features the iconic pairing of Jinnah's portrait (present on all Pakistani banknotes) with Mohenjo-daro on the 10 rupee denomination, linking Pakistan's modern foundation to its ancient Indus Valley heritage. The serial prefix 'FAX' indicates this is from a later printing within the series run. These notes were gradually withdrawn from circulation in the 1980s and replaced by subsequent series with updated security features.",
    "language_script": "Latin, Urdu (Nastaliq)",
    "languages": "en,ur",
    "serial_number": "FAX2728674",
    "serial_prefix": "FAX",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,
    "condition_grade": "F",
    "condition_notes": "Heavy circulation wear with staining, creases, and soiling throughout; paper integrity compromised with visible discoloration and dirt marks on both sides",
    "estimated_value_low": 1,
    "estimated_value_high": 3,
    "value_currency": "USD",
    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.5,
      "series_year": 0.6,
      "issue_year": 0.5,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.4,
      "material": 1.0,
      "dimensions_mm": 0.85,
      "watermark": 0.9,
      "portrait_subject": 1.0,
      "reverse_subject": 0.95,
      "pick_number": 0.95,
      "serial_number": 1.0,
      "front_description": 0.95,
      "back_description": 1.0,
      "historical_notes": 0.85,
      "condition_grade": 0.9
    },
    "overall_confidence": 0.88,
    "flags": ["low_light"]
  }
  ```

parsed_json:
  {"country": "Pakistan", "currency": "PKR", "denomination": "10 Rupees", "series_year": null, "series_name": null, "series_range": "1976-1984", "issue_year": null, "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "State Bank of Pakistan", "issuer_native": "\u0628\u06cc\u0646\u06a9 \u062f\u0648\u0644\u062a \u067e\u0627\u06a9\u0633\u062a\u0627\u0646", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "157x65", "watermark": "Muhammad Ali Jinnah portrait", "security_features": "watermark,intaglio", "color_palette": "#8b7d6b,#d4c5a9,#5a6b4d", "portrait_subject": "Muhammad Ali Jinnah", "reverse_subject": "Mohenjo-daro archaeological site", "themes": "statesman,architecture,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "28", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Mohenjo-daro, one of the major cities of the ancient Indus Valley Civilization (circa 2500\u20131900 BCE), located in Sindh province, Pakistan. The ruins represent one of the earliest major urban settlements in the world and a UNESCO World Heritage Site; the depiction shows the Great Bath and residential structures of this Bronze Age city, emphasizing Pakistan's ancient cultural heritage.", "back_description": "Muhammad Ali Jinnah (1876\u20131948), founder of Pakistan and its first Governor-General, widely known as Quaid-e-Azam (Great Leader). A barrister and statesman who led the All-India Muslim League and the Pakistan Movement, achieving the creation of Pakistan as an independent nation in 1947; he is the most honoured figure in Pakistani history and appears on all denominations of Pakistani currency.", "historical_notes": "This note belongs to the State Bank of Pakistan series issued from 1976 to 1984 following the 1971 redesign that removed Bengali script after the independence of Bangladesh. The design features the iconic pairing of Jinnah's portrait (present on all Pakistani banknotes) with Mohenjo-daro on the 10 rupee denomination, linking Pakistan's modern foundation to its ancient Indus Valley heritage. The serial prefix 'FAX' indicates this is from a later printing within the series run. These notes were gradually withdrawn from circulation in the 1980s and replaced by subsequent series with updated security features.", "language_script": "Latin, Urdu (Nastaliq)", "languages": "en,ur", "serial_number": "FAX2728674", "serial_prefix": "FAX", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Heavy circulation wear with staining, creases, and soiling throughout; paper integrity compromised with visible discoloration and dirt marks on both sides", "estimated_value_low": 1, "estimated_value_high": 3, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.5, "series_year": 0.6, "issue_year": 0.5, "issuer": 1.0, "signatures": 0.0, "printer": 0.4, "material": 1.0, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.95, "back_description": 1.0, "historical_notes": 0.85, "condition_grade": 0.9}, "overall_confidence": 0.88, "flags": ["low_light"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.5, "series_year": 0.6, "issue_year": 0.5, "issuer": 1.0, "signatures": 0.0, "printer": 0.4, "material": 1.0, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.95, "back_description": 1.0, "historical_notes": 0.85, "condition_grade": 0.9}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:53:19
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Pakistan",
    "currency": "PKR",
    "denomination": "10",
    "series_year": null,
    "series_name": null,
    "series_range": "1976-1984",
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "withdrawn",
    "legal_status_date": "1984",
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "State Bank of Pakistan",
    "issuer_native": "بینک دولت پاکستان",
    "signatures": null,
    "printer": "Bradbury Wilkinson & Co.",
    "engraver": null,
    "material": "paper",
    "dimensions_mm": "157x70",
    "watermark": "Portrait of Muhammad Ali Jinnah",
    "security_features": "watermark,intaglio",
    "color_palette": "#9db587,#f5f5dc,#4a4a3a",
    "portrait_subject": "Muhammad Ali Jinnah",
    "reverse_subject": "Mohenjo-daro archaeological site",
    "themes": "statesman,architecture,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": "28",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",
    "front_description": "Mohenjo-daro archaeological site in the Sindh province of Pakistan. This ancient Indus Valley Civilization settlement, dating to approximately 2500 BCE, is one of the world's earliest major cities and a UNESCO World Heritage Site. The site features sophisticated urban planning, including the famous Great Bath and drainage systems, representing Pakistan's ancient cultural heritage predating Islamic and British colonial periods by millennia.",
    "back_description": "Muhammad Ali Jinnah (1876-1948), founder and first Governor-General of Pakistan. As the leader of the All-India Muslim League, Jinnah was the principal architect of Pakistan's independence from British India in 1947, advocating for a separate Muslim state. Known as Quaid-e-Azam (Great Leader), he is revered as the father of the nation and his portrait has appeared on virtually all Pakistani banknotes since independence.",
    "historical_notes": "This note belongs to the State Bank of Pakistan series issued between 1976 and 1984, during which Pakistan was transitioning from the leadership of Zulfikar Ali Bhutto to the military government of General Muhammad Zia-ul-Haq. The 10 rupee denomination with this particular design (P-28) was part of the standard circulation series of the period. The note features bilingual text in English and Urdu. The serial number format 'GAS1614347' follows the standard Pakistani convention of a three-letter prefix followed by seven digits. No documented serial-year encoding is known for State Bank of Pakistan notes of this era. The note was eventually replaced by updated designs in the mid-1980s featuring enhanced security features.",
    "language_script": "Latin script and Urdu (Perso-Arabic script)",
    "languages": "en,ur",
    "serial_number": "GAS1614347",
    "serial_prefix": "GAS",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,
    "condition_grade": "F",
    "condition_notes": "Circulated note with visible wear, center fold, staining, and edge deterioration. Paper shows age discoloration.",
    "estimated_value_low": 2,
    "estimated_value_high": 8,
    "value_currency": "USD",
    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.5,
      "series_year": 0.6,
      "issue_year": 0.6,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.85,
      "material": 1.0,
      "dimensions_mm": 0.9,
      "watermark": 0.95,
      "portrait_subject": 1.0,
      "reverse_subject": 0.95,
      "pick_number": 0.95,
      "serial_number": 1.0,
      "front_description": 0.95,
      "back_description": 1.0,
      "historical_notes": 0.85,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.9,
    "flags": [
      "blurry",
      "low_light"
    ]
  }
  ```

parsed_json:
  {"country": "Pakistan", "currency": "PKR", "denomination": "10", "series_year": null, "series_name": null, "series_range": "1976-1984", "issue_year": null, "era": "1946_1989", "legal_status": "withdrawn", "legal_status_date": "1984", "predecessor_currency": null, "successor_currency": null, "issuer": "State Bank of Pakistan", "issuer_native": "\u0628\u06cc\u0646\u06a9 \u062f\u0648\u0644\u062a \u067e\u0627\u06a9\u0633\u062a\u0627\u0646", "signatures": null, "printer": "Bradbury Wilkinson & Co.", "engraver": null, "material": "paper", "dimensions_mm": "157x70", "watermark": "Portrait of Muhammad Ali Jinnah", "security_features": "watermark,intaglio", "color_palette": "#9db587,#f5f5dc,#4a4a3a", "portrait_subject": "Muhammad Ali Jinnah", "reverse_subject": "Mohenjo-daro archaeological site", "themes": "statesman,architecture,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "28", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Mohenjo-daro archaeological site in the Sindh province of Pakistan. This ancient Indus Valley Civilization settlement, dating to approximately 2500 BCE, is one of the world's earliest major cities and a UNESCO World Heritage Site. The site features sophisticated urban planning, including the famous Great Bath and drainage systems, representing Pakistan's ancient cultural heritage predating Islamic and British colonial periods by millennia.", "back_description": "Muhammad Ali Jinnah (1876-1948), founder and first Governor-General of Pakistan. As the leader of the All-India Muslim League, Jinnah was the principal architect of Pakistan's independence from British India in 1947, advocating for a separate Muslim state. Known as Quaid-e-Azam (Great Leader), he is revered as the father of the nation and his portrait has appeared on virtually all Pakistani banknotes since independence.", "historical_notes": "This note belongs to the State Bank of Pakistan series issued between 1976 and 1984, during which Pakistan was transitioning from the leadership of Zulfikar Ali Bhutto to the military government of General Muhammad Zia-ul-Haq. The 10 rupee denomination with this particular design (P-28) was part of the standard circulation series of the period. The note features bilingual text in English and Urdu. The serial number format 'GAS1614347' follows the standard Pakistani convention of a three-letter prefix followed by seven digits. No documented serial-year encoding is known for State Bank of Pakistan notes of this era. The note was eventually replaced by updated designs in the mid-1980s featuring enhanced security features.", "language_script": "Latin script and Urdu (Perso-Arabic script)", "languages": "en,ur", "serial_number": "GAS1614347", "serial_prefix": "GAS", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Circulated note with visible wear, center fold, staining, and edge deterioration. Paper shows age discoloration.", "estimated_value_low": 2, "estimated_value_high": 8, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.5, "series_year": 0.6, "issue_year": 0.6, "issuer": 1.0, "signatures": 0.0, "printer": 0.85, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.95, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.95, "back_description": 1.0, "historical_notes": 0.85, "condition_grade": 0.85}, "overall_confidence": 0.9, "flags": ["blurry", "low_light"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.5, "series_year": 0.6, "issue_year": 0.6, "issuer": 1.0, "signatures": 0.0, "printer": 0.85, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.95, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.95, "back_description": 1.0, "historical_notes": 0.85, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:53:20
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Pakistan",
    "currency": "PKR",
    "denomination": "10",
    "series_year": null,
    "series_name": null,
    "series_range": "1948-1953",
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1953",
    "predecessor_currency": "Indian Rupee",
    "successor_currency": null,
    "issuer": "State Bank of Pakistan",
    "issuer_native": "بینک دولت پاکستان",
    "signatures": null,
    "printer": null,
    "engraver": null,
    "material": "paper",
    "dimensions_mm": "157x91",
    "watermark": "Crescent and star in clear field",
    "security_features": "intaglio,microprint",
    "color_palette": "#d4c4a8,#8b9e7d,#f5e6d3",
    "portrait_subject": "Muhammad Ali Jinnah",
    "reverse_subject": "Mohenjo-daro archaeological site",
    "themes": "statesman,architecture,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": "13",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "scarce",
    "front_description": "Mohenjo-daro, the ancient Indus Valley Civilization city dating to approximately 2500 BCE, located in present-day Sindh province. The archaeological site, excavated in the 1920s, is one of the earliest major urban settlements in the world and a UNESCO World Heritage Site. This view shows the Great Bath and the Buddhist stupa built atop the citadel mound, representing Pakistan's ancient heritage. The State Bank of Pakistan seal appears at left featuring the national emblem with crescent and star.",
    "back_description": "Muhammad Ali Jinnah (1876-1948), founder and first Governor-General of Pakistan, known as Quaid-e-Azam (Great Leader). A barrister, politician and statesman who led the All-India Muslim League and the Pakistan Movement, securing the creation of Pakistan as an independent nation in 1947. He served as Pakistan's first head of state until his death in September 1948, shortly after independence. This portrait shows him in formal Western attire with his signature karakul cap.",
    "historical_notes": "This is one of the earliest banknote issues of the newly independent State Bank of Pakistan, established in 1948 following partition and independence from British India in 1947. The first Pakistani rupee series replaced Indian currency and featured Jinnah prominently to establish national identity. This 10 rupee denomination was part of the inaugural series issued 1948-1953, designed to symbolize both Pakistan's ancient Indus Valley heritage (Mohenjo-daro on front) and its modern founding father (Jinnah on back). The note predates the 1953 reforms that introduced new designs. No signatures are visible on this specimen. Serial prefix 'HAA' indicates a specific print block but no documented serial-year encoding exists for this early Pakistani issue. The note is printed in green-brown tones with English and Urdu inscriptions.",
    "language_script": "Arabic,Latin",
    "languages": "en,ur",
    "serial_number": "HAA2255483",
    "serial_prefix": "HAA",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,
    "condition_grade": "F",
    "condition_notes": "Heavy circulation wear with multiple stains, tears along vertical fold, soiling throughout, and edge wear. Paper remains intact but shows significant age and handling.",
    "estimated_value_low": 15,
    "estimated_value_high": 40,
    "value_currency": "USD",
    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.9,
      "watermark": 0.85,
      "portrait_subject": 1.0,
      "reverse_subject": 0.95,
      "pick_number": 0.95,
      "serial_number": 1.0,
      "front_description": 0.95,
      "back_description": 1.0,
      "historical_notes": 0.9,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.92,
    "flags": [
      "blurry",
      "low_light"
    ]
  }
  ```

parsed_json:
  {"country": "Pakistan", "currency": "PKR", "denomination": "10", "series_year": null, "series_name": null, "series_range": "1948-1953", "issue_year": null, "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1953", "predecessor_currency": "Indian Rupee", "successor_currency": null, "issuer": "State Bank of Pakistan", "issuer_native": "\u0628\u06cc\u0646\u06a9 \u062f\u0648\u0644\u062a \u067e\u0627\u06a9\u0633\u062a\u0627\u0646", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "157x91", "watermark": "Crescent and star in clear field", "security_features": "intaglio,microprint", "color_palette": "#d4c4a8,#8b9e7d,#f5e6d3", "portrait_subject": "Muhammad Ali Jinnah", "reverse_subject": "Mohenjo-daro archaeological site", "themes": "statesman,architecture,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "13", "krause_id": null, "wpm_id": null, "rarity_tier": "scarce", "front_description": "Mohenjo-daro, the ancient Indus Valley Civilization city dating to approximately 2500 BCE, located in present-day Sindh province. The archaeological site, excavated in the 1920s, is one of the earliest major urban settlements in the world and a UNESCO World Heritage Site. This view shows the Great Bath and the Buddhist stupa built atop the citadel mound, representing Pakistan's ancient heritage. The State Bank of Pakistan seal appears at left featuring the national emblem with crescent and star.", "back_description": "Muhammad Ali Jinnah (1876-1948), founder and first Governor-General of Pakistan, known as Quaid-e-Azam (Great Leader). A barrister, politician and statesman who led the All-India Muslim League and the Pakistan Movement, securing the creation of Pakistan as an independent nation in 1947. He served as Pakistan's first head of state until his death in September 1948, shortly after independence. This portrait shows him in formal Western attire with his signature karakul cap.", "historical_notes": "This is one of the earliest banknote issues of the newly independent State Bank of Pakistan, established in 1948 following partition and independence from British India in 1947. The first Pakistani rupee series replaced Indian currency and featured Jinnah prominently to establish national identity. This 10 rupee denomination was part of the inaugural series issued 1948-1953, designed to symbolize both Pakistan's ancient Indus Valley heritage (Mohenjo-daro on front) and its modern founding father (Jinnah on back). The note predates the 1953 reforms that introduced new designs. No signatures are visible on this specimen. Serial prefix 'HAA' indicates a specific print block but no documented serial-year encoding exists for this early Pakistani issue. The note is printed in green-brown tones with English and Urdu inscriptions.", "language_script": "Arabic,Latin", "languages": "en,ur", "serial_number": "HAA2255483", "serial_prefix": "HAA", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Heavy circulation wear with multiple stains, tears along vertical fold, soiling throughout, and edge wear. Paper remains intact but shows significant age and handling.", "estimated_value_low": 15, "estimated_value_high": 40, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.95, "back_description": 1.0, "historical_notes": 0.9, "condition_grade": 0.85}, "overall_confidence": 0.92, "flags": ["blurry", "low_light"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.95, "back_description": 1.0, "historical_notes": 0.9, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:53:43
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Oman",
    "currency": "OMR",
    "denomination": "100",
    "series_year": "1995",
    "series_name": "Fifth issue",
    "series_range": "1995–2000",
    "issue_year": "1995",
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": "2000",
    "predecessor_currency": "Omani Rial (Fourth issue)",
    "successor_currency": "Omani Rial (Sixth issue)",

    "issuer": "Central Bank of Oman",
    "issuer_native": "بنك مركزي عماني",
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "165x75",
    "watermark": null,
    "security_features": "microprint,intaglio",
    "color_palette": "#8b9f7b,#d4c5b0,#1a1a1a",

    "portrait_subject": null,
    "reverse_subject": "Muhammad Ali Jinnah",
    "themes": "wildlife,architecture,statesman",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-32",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Arabian oryx (Oryx leucoryx), the national animal of Oman, shown prominently at center alongside a Sooty falcon (Falco concolor). The Arabian oryx was extinct in the wild by 1972 but successfully reintroduced through captive breeding programs, making it a symbol of conservation success and Omani environmental heritage. Traditional Omani fort and dhow imagery appear in the background, representing the country's maritime trading history and architectural legacy. Arabian gazelles are depicted in the landscape.",
    "back_description": "Muhammad Ali Jinnah (1876–1948), founder and first Governor-General of Pakistan, wearing formal Western attire with traditional karakul cap. Jinnah led the All-India Muslim League and the Pakistan Movement, achieving the creation of Pakistan as an independent nation in 1947. His portrait appears with the State Bank of Pakistan emblem and Urdu script identifying the issuing authority.",
    "historical_notes": "CRITICAL MISMATCH IDENTIFIED: The front depicts an Omani 100 Baisa note from the Central Bank of Oman (Fifth issue, 1995), while the back shows a Pakistani 10 Rupees note featuring Muhammad Ali Jinnah, issued by the State Bank of Pakistan. These are NOT the front and back of the same banknote. The Omani 100 Baisa note (P-32) from the 1995 series was part of a redesign emphasizing Omani wildlife and cultural heritage. The actual reverse of P-32 features Nizwa Fort and traditional Omani architecture. The Pakistani note shown is from a different country, currency, and denomination entirely. The serial number 'HAK8643291' visible on the Pakistan note cannot correspond to the Omani note serial '1416 H/1995 G' visible on the front. The date notation '1416 H' refers to the Islamic calendar year 1416 AH (approximately 1995–1996 CE), consistent with the 1995 issue year.",
    "language_script": "Latin script on front; Arabic and Urdu script on back",
    "languages": "en,ar,ur",

    "serial_number": "1416 H/1995 G",
    "serial_prefix": "1416 H",
    "serial_suffix": "G",
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "F",
    "condition_notes": "Circulated note with visible wear, soiling, and staining. Note shows handling marks and loss of crispness. Images depict mismatched notes from different countries.",

    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,

    "field_confidence": {
      "country": 0.98,
      "currency": 0.98,
      "denomination": 0.98,
      "series_name": 0.85,
      "series_year": 0.9,
      "issue_year": 0.9,
      "issuer": 0.98,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.85,
      "watermark": 0.0,
      "portrait_subject": 0.95,
      "reverse_subject": 0.0,
      "pick_number": 0.9,
      "serial_number": 0.85,
      "front_description": 0.92,
      "back_description": 0.0,
      "historical_notes": 0.98,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.35,
    "flags": ["mismatched_pair", "worn", "soiled"]
  }
  ```

parsed_json:
  {"country": "Oman", "currency": "OMR", "denomination": "100", "series_year": "1995", "series_name": "Fifth issue", "series_range": "1995\u20132000", "issue_year": "1995", "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": "2000", "predecessor_currency": "Omani Rial (Fourth issue)", "successor_currency": "Omani Rial (Sixth issue)", "issuer": "Central Bank of Oman", "issuer_native": "\u0628\u0646\u0643 \u0645\u0631\u0643\u0632\u064a \u0639\u0645\u0627\u0646\u064a", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "165x75", "watermark": null, "security_features": "microprint,intaglio", "color_palette": "#8b9f7b,#d4c5b0,#1a1a1a", "portrait_subject": null, "reverse_subject": "Muhammad Ali Jinnah", "themes": "wildlife,architecture,statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-32", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Arabian oryx (Oryx leucoryx), the national animal of Oman, shown prominently at center alongside a Sooty falcon (Falco concolor). The Arabian oryx was extinct in the wild by 1972 but successfully reintroduced through captive breeding programs, making it a symbol of conservation success and Omani environmental heritage. Traditional Omani fort and dhow imagery appear in the background, representing the country's maritime trading history and architectural legacy. Arabian gazelles are depicted in the landscape.", "back_description": "Muhammad Ali Jinnah (1876\u20131948), founder and first Governor-General of Pakistan, wearing formal Western attire with traditional karakul cap. Jinnah led the All-India Muslim League and the Pakistan Movement, achieving the creation of Pakistan as an independent nation in 1947. His portrait appears with the State Bank of Pakistan emblem and Urdu script identifying the issuing authority.", "historical_notes": "CRITICAL MISMATCH IDENTIFIED: The front depicts an Omani 100 Baisa note from the Central Bank of Oman (Fifth issue, 1995), while the back shows a Pakistani 10 Rupees note featuring Muhammad Ali Jinnah, issued by the State Bank of Pakistan. These are NOT the front and back of the same banknote. The Omani 100 Baisa note (P-32) from the 1995 series was part of a redesign emphasizing Omani wildlife and cultural heritage. The actual reverse of P-32 features Nizwa Fort and traditional Omani architecture. The Pakistani note shown is from a different country, currency, and denomination entirely. The serial number 'HAK8643291' visible on the Pakistan note cannot correspond to the Omani note serial '1416 H/1995 G' visible on the front. The date notation '1416 H' refers to the Islamic calendar year 1416 AH (approximately 1995\u20131996 CE), consistent with the 1995 issue year.", "language_script": "Latin script on front; Arabic and Urdu script on back", "languages": "en,ar,ur", "serial_number": "1416 H/1995 G", "serial_prefix": "1416 H", "serial_suffix": "G", "replacement_note": false, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Circulated note with visible wear, soiling, and staining. Note shows handling marks and loss of crispness. Images depict mismatched notes from different countries.", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.98, "currency": 0.98, "denomination": 0.98, "series_name": 0.85, "series_year": 0.9, "issue_year": 0.9, "issuer": 0.98, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.0, "portrait_subject": 0.95, "reverse_subject": 0.0, "pick_number": 0.9, "serial_number": 0.85, "front_description": 0.92, "back_description": 0.0, "historical_notes": 0.98, "condition_grade": 0.8}, "overall_confidence": 0.35, "flags": ["mismatched_pair", "worn", "soiled"]}

field_confidence:
  {"country": 0.98, "currency": 0.98, "denomination": 0.98, "series_name": 0.85, "series_year": 0.9, "issue_year": 0.9, "issuer": 0.98, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.0, "portrait_subject": 0.95, "reverse_subject": 0.0, "pick_number": 0.9, "serial_number": 0.85, "front_description": 0.92, "back_description": 0.0, "historical_notes": 0.98, "condition_grade": 0.8}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 06:53:43
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": null,
    "denomination": null,
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": null,
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": null,
    "dimensions_mm": null,
    "watermark": null,
    "security_features": null,
    "color_palette": null,

    "portrait_subject": null,
    "reverse_subject": null,
    "themes": null,
    "commemorative": null,
    "commemorative_occasion": null,

    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,

    "front_description": "Central Bank of Oman 100 Baisa note featuring Omani wildlife: a golden eagle (Aquila chrysaetos), Arabian oryx (Oryx leucoryx), Arabian gazelle, and various birds including bee-eaters perched on branches. The national emblem of Oman (khanjar dagger and two crossed swords) appears at right. Date shown as 1416 H/1995 G (Islamic and Gregorian calendars).",
    "back_description": "State Bank of Pakistan 10 Rupees note featuring Muhammad Ali Jinnah (1876-1948), founder of Pakistan and first Governor-General, known as Quaid-i-Azam (Great Leader). Jinnah led the All-India Muslim League and the Pakistan Movement that resulted in the creation of Pakistan in 1947.",
    "historical_notes": "MISMATCHED PAIR: The front image shows an Oman 100 Baisa note from 1995, while the back image shows a Pakistan 10 Rupees note. These are two completely different banknotes from different countries. The Oman note belongs to the 1995 wildlife series. The Pakistan note is from the standard Jinnah portrait series issued by State Bank of Pakistan, likely from the 1980s-2000s era based on design style.",
    "language_script": null,
    "languages": null,

    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,

    "condition_grade": null,
    "condition_notes": "Cannot assess condition accurately due to mismatched pair. Front (Oman) appears UNC. Back (Pakistan) shows significant circulation wear, staining, and soiling, approximately VG-F grade.",

    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,

    "field_confidence": {
      "country": 0.0,
      "currency": 0.0,
      "denomination": 0.0,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 0.0,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.0,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.0,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.9,
      "back_description": 0.9,
      "historical_notes": 0.95,
      "condition_grade": 0.0
    },
    "overall_confidence": 0.15,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": null, "currency": null, "denomination": null, "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": null, "legal_status": null, "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": null, "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": null, "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": null, "portrait_subject": null, "reverse_subject": null, "themes": null, "commemorative": null, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "Central Bank of Oman 100 Baisa note featuring Omani wildlife: a golden eagle (Aquila chrysaetos), Arabian oryx (Oryx leucoryx), Arabian gazelle, and various birds including bee-eaters perched on branches. The national emblem of Oman (khanjar dagger and two crossed swords) appears at right. Date shown as 1416 H/1995 G (Islamic and Gregorian calendars).", "back_description": "State Bank of Pakistan 10 Rupees note featuring Muhammad Ali Jinnah (1876-1948), founder of Pakistan and first Governor-General, known as Quaid-i-Azam (Great Leader). Jinnah led the All-India Muslim League and the Pakistan Movement that resulted in the creation of Pakistan in 1947.", "historical_notes": "MISMATCHED PAIR: The front image shows an Oman 100 Baisa note from 1995, while the back image shows a Pakistan 10 Rupees note. These are two completely different banknotes from different countries. The Oman note belongs to the 1995 wildlife series. The Pakistan note is from the standard Jinnah portrait series issued by State Bank of Pakistan, likely from the 1980s-2000s era based on design style.", "language_script": null, "languages": null, "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": null, "condition_notes": "Cannot assess condition accurately due to mismatched pair. Front (Oman) appears UNC. Back (Pakistan) shows significant circulation wear, staining, and soiling, approximately VG-F grade.", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.0, "currency": 0.0, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.0, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.0}, "overall_confidence": 0.15, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.0, "currency": 0.0, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.0, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.0}


provider: openai
model: gpt-4o
status: ok
created_at: 2026-05-10 06:53:43
prompt_version: v3-year-reasoning
raw_response:
  {
    "country": "Oman",
    "currency": "Omani Rial",
    "denomination": "100 Baisa",
    "series_year": "1995",
    "series_name": null,
    "series_range": "1995–present",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "in_circulation",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "Central Bank of Oman",
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,
    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": null,
    "color_palette": "#b5cbb7,#9ea18a,#7e8473",
    "portrait_subject": null,
    "reverse_subject": null,
    "themes": "wildlife",
    "commemorative": null,
    "commemorative_occasion": null,
    "pick_number": "P-32",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",
    "front_description": "Features Omani wildlife including the Arabian Oryx, falcon, and gazelle.",
    "back_description": null,
    "historical_notes": "This note belongs to the series issued by the Central Bank of Oman in the mid-1990s, showcasing local wildlife to promote national heritage and wildlife conservation.",
    "language_script": null,
    "languages": "ar,en",
    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,
    "condition_grade": "unknown",
    "condition_notes": null,
    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,
    "field_confidence": {
      "country": 0.95,
      "currency": 0.95,
      "denomination": 0.95,
      "series_name": 0.5,
      "series_year": 0.9,
      "issue_year": 0.6,
      "issuer": 0.95,
      "signatures": 0.4,
      "printer": 0.4,
      "material": 0.8,
      "dimensions_mm": 0.5,
      "watermark": 0.5,
      "portrait_subject": 0.1,
      "reverse_subject": 0.1,
      "pick_number": 0.85,
      "serial_number": 0.4,
      "front_description": 0.9,
      "back_description": 0.1,
      "historical_notes": 0.8,
      "condition_grade": 0.5
    },
    "overall_confidence": 0.75,
    "flags": ["mismatched_pair"]
  }

parsed_json:
  {"country": "Oman", "currency": "Omani Rial", "denomination": "100 Baisa", "series_year": "1995", "series_name": null, "series_range": "1995\u2013present", "issue_year": null, "era": "1990_present", "legal_status": "in_circulation", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "Central Bank of Oman", "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": "#b5cbb7,#9ea18a,#7e8473", "portrait_subject": null, "reverse_subject": null, "themes": "wildlife", "commemorative": null, "commemorative_occasion": null, "pick_number": "P-32", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Features Omani wildlife including the Arabian Oryx, falcon, and gazelle.", "back_description": null, "historical_notes": "This note belongs to the series issued by the Central Bank of Oman in the mid-1990s, showcasing local wildlife to promote national heritage and wildlife conservation.", "language_script": null, "languages": "ar,en", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "unknown", "condition_notes": null, "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.95, "currency": 0.95, "denomination": 0.95, "series_name": 0.5, "series_year": 0.9, "issue_year": 0.6, "issuer": 0.95, "signatures": 0.4, "printer": 0.4, "material": 0.8, "dimensions_mm": 0.5, "watermark": 0.5, "portrait_subject": 0.1, "reverse_subject": 0.1, "pick_number": 0.85, "serial_number": 0.4, "front_description": 0.9, "back_description": 0.1, "historical_notes": 0.8, "condition_grade": 0.5}, "overall_confidence": 0.75, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.95, "currency": 0.95, "denomination": 0.95, "series_name": 0.5, "series_year": 0.9, "issue_year": 0.6, "issuer": 0.95, "signatures": 0.4, "printer": 0.4, "material": 0.8, "dimensions_mm": 0.5, "watermark": 0.5, "portrait_subject": 0.1, "reverse_subject": 0.1, "pick_number": 0.85, "serial_number": 0.4, "front_description": 0.9, "back_description": 0.1, "historical_notes": 0.8, "condition_grade": 0.5}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:54:05
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Pakistan",
    "currency": "PKR",
    "denomination": "10 Rupees (front) / 500 Rupees (back)",
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": "State Bank of Pakistan",
    "issuer_native": "بینک دولت پاکستان",
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": null,
    "color_palette": "#8b7355,#d4c5a9,#2f4f4f",

    "portrait_subject": "Muhammad Ali Jinnah",
    "reverse_subject": null,
    "themes": "statesman,architecture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,

    "front_description": "View of Mohenjo-daro archaeological site, one of the major settlements of the ancient Indus Valley Civilization (circa 2500–1900 BCE), located in Sindh province. The site features the Great Bath, residential structures, and the Stupa mound, representing Pakistan's ancient heritage. Mohenjo-daro is a UNESCO World Heritage Site and among the earliest major urban settlements in South Asia.",
    "back_description": "Muhammad Ali Jinnah (1876–1948), founder of Pakistan and its first Governor-General, known as Quaid-e-Azam (Great Leader). He was a barrister, politician and statesman who led the All-India Muslim League and the Pakistan Movement, achieving the creation of Pakistan as an independent nation in 1947. Jinnah appears on virtually all Pakistani banknotes as the nation's founding father.",
    "historical_notes": "This appears to be a mismatched pair: the front shows a 10 Rupees note from the State Bank of Pakistan featuring Mohenjo-daro, while the back shows a 500 Rupees note featuring Muhammad Ali Jinnah with serial number AK0040323. The front is from an early series (likely 1970s-1980s based on design style and monochrome green-brown printing), while the back is from a later multicolored series (likely 1980s-1990s). Pakistani rupee notes from this era typically featured Jinnah on the obverse and various national landmarks, monuments, or economic scenes on the reverse. Without a matching pair, precise dating and Pick catalogue references cannot be reliably determined.",
    "language_script": "Latin, Urdu (Nastaliq)",
    "languages": "en,ur",

    "serial_number": "AK0040323",
    "serial_prefix": "AK",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "F",
    "condition_notes": "Significant staining, soiling and discoloration visible on both sides; horizontal and vertical fold marks; surface wear consistent with heavy circulation.",

    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 0.95,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 1.0,
      "reverse_subject": 0.85,
      "pick_number": 0.0,
      "serial_number": 0.98,
      "front_description": 0.85,
      "back_description": 1.0,
      "historical_notes": 0.75,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.45,
    "flags": ["mismatched_pair", "obscured", "low_light"]
  }
  ```

parsed_json:
  {"country": "Pakistan", "currency": "PKR", "denomination": "10 Rupees (front) / 500 Rupees (back)", "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": null, "legal_status": null, "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "State Bank of Pakistan", "issuer_native": "\u0628\u06cc\u0646\u06a9 \u062f\u0648\u0644\u062a \u067e\u0627\u06a9\u0633\u062a\u0627\u0646", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": "#8b7355,#d4c5a9,#2f4f4f", "portrait_subject": "Muhammad Ali Jinnah", "reverse_subject": null, "themes": "statesman,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "View of Mohenjo-daro archaeological site, one of the major settlements of the ancient Indus Valley Civilization (circa 2500\u20131900 BCE), located in Sindh province. The site features the Great Bath, residential structures, and the Stupa mound, representing Pakistan's ancient heritage. Mohenjo-daro is a UNESCO World Heritage Site and among the earliest major urban settlements in South Asia.", "back_description": "Muhammad Ali Jinnah (1876\u20131948), founder of Pakistan and its first Governor-General, known as Quaid-e-Azam (Great Leader). He was a barrister, politician and statesman who led the All-India Muslim League and the Pakistan Movement, achieving the creation of Pakistan as an independent nation in 1947. Jinnah appears on virtually all Pakistani banknotes as the nation's founding father.", "historical_notes": "This appears to be a mismatched pair: the front shows a 10 Rupees note from the State Bank of Pakistan featuring Mohenjo-daro, while the back shows a 500 Rupees note featuring Muhammad Ali Jinnah with serial number AK0040323. The front is from an early series (likely 1970s-1980s based on design style and monochrome green-brown printing), while the back is from a later multicolored series (likely 1980s-1990s). Pakistani rupee notes from this era typically featured Jinnah on the obverse and various national landmarks, monuments, or economic scenes on the reverse. Without a matching pair, precise dating and Pick catalogue references cannot be reliably determined.", "language_script": "Latin, Urdu (Nastaliq)", "languages": "en,ur", "serial_number": "AK0040323", "serial_prefix": "AK", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Significant staining, soiling and discoloration visible on both sides; horizontal and vertical fold marks; surface wear consistent with heavy circulation.", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 0.95, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 1.0, "reverse_subject": 0.85, "pick_number": 0.0, "serial_number": 0.98, "front_description": 0.85, "back_description": 1.0, "historical_notes": 0.75, "condition_grade": 0.8}, "overall_confidence": 0.45, "flags": ["mismatched_pair", "obscured", "low_light"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 0.95, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 1.0, "reverse_subject": 0.85, "pick_number": 0.0, "serial_number": 0.98, "front_description": 0.85, "back_description": 1.0, "historical_notes": 0.75, "condition_grade": 0.8}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 06:54:05
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Pakistan",
    "currency": "PKR",
    "denomination": "500",
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": "State Bank of Pakistan",
    "issuer_native": "بینک دولت پاکستان",
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "165x73",
    "watermark": "Portrait of Muhammad Ali Jinnah",
    "security_features": "thread,intaglio",
    "color_palette": "#4a7c59,#d4a5a5,#c9b896",

    "portrait_subject": "Muhammad Ali Jinnah",
    "reverse_subject": null,
    "themes": "statesman,architecture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Muhammad Ali Jinnah (1876–1948), the founder of Pakistan and its first Governor-General, known as Quaid-i-Azam (Great Leader). A barrister and politician, he led the All-India Muslim League and the Pakistan Movement, achieving the creation of Pakistan as an independent Muslim-majority nation in August 1947. He appears in his characteristic karakul cap and formal suit, a standard portrait used across Pakistani currency.",
    "back_description": "The Mohenjo-daro archaeological site, one of the largest settlements of the ancient Indus Valley Civilization, dating to approximately 2500 BCE. Located in present-day Sindh province, Pakistan, it was designated a UNESCO World Heritage Site in 1980. The stupa and Great Bath visible atop the mound represent this ancient urban center's sophisticated planning and engineering.",
    "historical_notes": "CRITICAL NOTE: These two images appear to be MISMATCHED. The front shows a 500 Rupee note featuring Muhammad Ali Jinnah, while the back shows a 10 Rupee note featuring Mohenjo-daro. The 10 Rupee back design with Mohenjo-daro was used in earlier series of Pakistani currency. The 500 Rupee note with this older design style was issued from the late 1980s through the 1990s before being replaced by newer security-enhanced versions. The serial number prefix 'AK' and the multicolor design are consistent with issues from the 1980s-1990s period.",
    "language_script": "Urdu,English",
    "languages": "ur,en",

    "serial_number": "AK0040323",
    "serial_prefix": "AK",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VG",
    "condition_notes": "Heavy circulation wear, significant staining and foxing on the 10 Rupee side, pen marks and ink stains visible on the 500 Rupee side, general soiling throughout, soft folds",

    "estimated_value_low": 2,
    "estimated_value_high": 8,
    "value_currency": "USD",

    "field_confidence": {
      "country": 0.98,
      "currency": 0.98,
      "denomination": 0.6,
      "series_name": 0.3,
      "series_year": 0.3,
      "issue_year": 0.3,
      "issuer": 0.98,
      "signatures": 0.2,
      "printer": 0.3,
      "material": 0.95,
      "dimensions_mm": 0.7,
      "watermark": 0.85,
      "portrait_subject": 0.98,
      "reverse_subject": 0.85,
      "pick_number": 0.2,
      "serial_number": 0.95,
      "front_description": 0.92,
      "back_description": 0.88,
      "historical_notes": 0.75,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.45,
    "flags": ["mismatched_pair", "stained", "foreign_object"]
  }
  ```

parsed_json:
  {"country": "Pakistan", "currency": "PKR", "denomination": "500", "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "State Bank of Pakistan", "issuer_native": "\u0628\u06cc\u0646\u06a9 \u062f\u0648\u0644\u062a \u067e\u0627\u06a9\u0633\u062a\u0627\u0646", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "165x73", "watermark": "Portrait of Muhammad Ali Jinnah", "security_features": "thread,intaglio", "color_palette": "#4a7c59,#d4a5a5,#c9b896", "portrait_subject": "Muhammad Ali Jinnah", "reverse_subject": null, "themes": "statesman,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Muhammad Ali Jinnah (1876\u20131948), the founder of Pakistan and its first Governor-General, known as Quaid-i-Azam (Great Leader). A barrister and politician, he led the All-India Muslim League and the Pakistan Movement, achieving the creation of Pakistan as an independent Muslim-majority nation in August 1947. He appears in his characteristic karakul cap and formal suit, a standard portrait used across Pakistani currency.", "back_description": "The Mohenjo-daro archaeological site, one of the largest settlements of the ancient Indus Valley Civilization, dating to approximately 2500 BCE. Located in present-day Sindh province, Pakistan, it was designated a UNESCO World Heritage Site in 1980. The stupa and Great Bath visible atop the mound represent this ancient urban center's sophisticated planning and engineering.", "historical_notes": "CRITICAL NOTE: These two images appear to be MISMATCHED. The front shows a 500 Rupee note featuring Muhammad Ali Jinnah, while the back shows a 10 Rupee note featuring Mohenjo-daro. The 10 Rupee back design with Mohenjo-daro was used in earlier series of Pakistani currency. The 500 Rupee note with this older design style was issued from the late 1980s through the 1990s before being replaced by newer security-enhanced versions. The serial number prefix 'AK' and the multicolor design are consistent with issues from the 1980s-1990s period.", "language_script": "Urdu,English", "languages": "ur,en", "serial_number": "AK0040323", "serial_prefix": "AK", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VG", "condition_notes": "Heavy circulation wear, significant staining and foxing on the 10 Rupee side, pen marks and ink stains visible on the 500 Rupee side, general soiling throughout, soft folds", "estimated_value_low": 2, "estimated_value_high": 8, "value_currency": "USD", "field_confidence": {"country": 0.98, "currency": 0.98, "denomination": 0.6, "series_name": 0.3, "series_year": 0.3, "issue_year": 0.3, "issuer": 0.98, "signatures": 0.2, "printer": 0.3, "material": 0.95, "dimensions_mm": 0.7, "watermark": 0.85, "portrait_subject": 0.98, "reverse_subject": 0.85, "pick_number": 0.2, "serial_number": 0.95, "front_description": 0.92, "back_description": 0.88, "historical_notes": 0.75, "condition_grade": 0.8}, "overall_confidence": 0.45, "flags": ["mismatched_pair", "stained", "foreign_object"]}

field_confidence:
  {"country": 0.98, "currency": 0.98, "denomination": 0.6, "series_name": 0.3, "series_year": 0.3, "issue_year": 0.3, "issuer": 0.98, "signatures": 0.2, "printer": 0.3, "material": 0.95, "dimensions_mm": 0.7, "watermark": 0.85, "portrait_subject": 0.98, "reverse_subject": 0.85, "pick_number": 0.2, "serial_number": 0.95, "front_description": 0.92, "back_description": 0.88, "historical_notes": 0.75, "condition_grade": 0.8}


provider: openai
model: gpt-4o
status: ok
created_at: 2026-05-10 06:54:05
prompt_version: v3-year-reasoning
raw_response:
  {
    "country": "Pakistan",
    "currency": "Pakistani Rupee",
    "denomination": "10 Rupees",
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": "withdrawn",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "State Bank of Pakistan",
    "issuer_native": "بینک دولت پاکستان",
    "signatures": null,
    "printer": null,
    "engraver": null,
    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": null,
    "color_palette": null,
    "portrait_subject": "Muhammad Ali Jinnah",
    "reverse_subject": "Mohenjo-Daro",
    "themes": "statesman, architecture",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,
    "front_description": "Mohenjo-Daro, an archaeological site in the province of Sindh, Pakistan, built around 2500 BCE. It is one of the largest settlements of the ancient Indus Valley Civilization and one of the world's earliest major cities.",
    "back_description": "Muhammad Ali Jinnah (1876–1948), the founder of Pakistan. He served as the leader of the All-India Muslim League until Pakistan's independence, and is revered as the 'Quaid-e-Azam' (Great Leader).",
    "historical_notes": "This 10 Rupees note was issued by the State Bank of Pakistan and features prominently important Pakistani heritage and figures. The depiction of Mohenjo-Daro highlights the Indus Valley Civilization's significance. Muhammad Ali Jinnah's portrait underscores his pivotal role in India's partition and Pakistan's formation.",
    "language_script": "Arabic",
    "languages": "ur",
    "serial_number": "AK0040323",
    "serial_prefix": "AK",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,
    "condition_grade": "unknown",
    "condition_notes": null,
    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,
    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.8,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "pick_number": 0.0,
      "serial_number": 1.0,
      "front_description": 1.0,
      "back_description": 1.0,
      "historical_notes": 0.9,
      "condition_grade": 0.0
    },
    "overall_confidence": 0.8,
    "flags": []
  }

parsed_json:
  {"country": "Pakistan", "currency": "Pakistani Rupee", "denomination": "10 Rupees", "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": null, "legal_status": "withdrawn", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "State Bank of Pakistan", "issuer_native": "\u0628\u06cc\u0646\u06a9 \u062f\u0648\u0644\u062a \u067e\u0627\u06a9\u0633\u062a\u0627\u0646", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": null, "portrait_subject": "Muhammad Ali Jinnah", "reverse_subject": "Mohenjo-Daro", "themes": "statesman, architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "Mohenjo-Daro, an archaeological site in the province of Sindh, Pakistan, built around 2500 BCE. It is one of the largest settlements of the ancient Indus Valley Civilization and one of the world's earliest major cities.", "back_description": "Muhammad Ali Jinnah (1876\u20131948), the founder of Pakistan. He served as the leader of the All-India Muslim League until Pakistan's independence, and is revered as the 'Quaid-e-Azam' (Great Leader).", "historical_notes": "This 10 Rupees note was issued by the State Bank of Pakistan and features prominently important Pakistani heritage and figures. The depiction of Mohenjo-Daro highlights the Indus Valley Civilization's significance. Muhammad Ali Jinnah's portrait underscores his pivotal role in India's partition and Pakistan's formation.", "language_script": "Arabic", "languages": "ur", "serial_number": "AK0040323", "serial_prefix": "AK", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "unknown", "condition_notes": null, "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.0, "material": 0.8, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.0, "serial_number": 1.0, "front_description": 1.0, "back_description": 1.0, "historical_notes": 0.9, "condition_grade": 0.0}, "overall_confidence": 0.8, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.0, "material": 0.8, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.0, "serial_number": 1.0, "front_description": 1.0, "back_description": 1.0, "historical_notes": 0.9, "condition_grade": 0.0}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:54:39
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Pakistan",
    "currency": "PKR",
    "denomination": "10",
    "series_year": null,
    "series_name": null,
    "series_range": "1983–1999",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "State Bank of Pakistan",
    "issuer_native": "بینک دولت پاکستان",
    "signatures": null,
    "printer": "Pakistan Security Printing Corporation",
    "engraver": null,
    "material": "paper",
    "dimensions_mm": "140x70",
    "watermark": "Portrait of Muhammad Ali Jinnah",
    "security_features": "thread,microprint,intaglio",
    "color_palette": "#d4a5a5,#8b7355,#e8d4c8",
    "portrait_subject": "Muhammad Ali Jinnah",
    "reverse_subject": "Bab-e-Khyber (Khyber Pass gate)",
    "themes": "statesman,architecture,military",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": "39",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",
    "front_description": "Bab-e-Khyber, the gate at the Khyber Pass near Peshawar, marking the historic entrance to the Indian subcontinent through the Hindu Kush mountains. The Khyber Pass has been strategically and historically significant for millennia as a trade and invasion route connecting Central Asia with South Asia. The fort structure shown features characteristic battlements and towers typical of Mughal-era frontier fortifications.",
    "back_description": "Muhammad Ali Jinnah (1876–1948), founder of Pakistan and its first Governor-General, universally known in Pakistan as Quaid-e-Azam (Great Leader). A barrister by training, Jinnah led the All-India Muslim League and the Pakistan Movement, successfully advocating for the creation of an independent Muslim state that became Pakistan in 1947. He is the most honoured figure on Pakistani currency and appears on virtually all Pakistani banknotes since independence.",
    "historical_notes": "This 10 Rupees note belongs to the series issued by the State Bank of Pakistan from the mid-1980s through the 1990s, replacing earlier designs. The P-39 series features Jinnah on the reverse (right side when viewing back) and various Pakistani landmarks on the front. The Bab-e-Khyber gate symbolizes Pakistan's northwestern frontier heritage and the Pashtun regions. Serial number format 'AAC0440775' with letter prefix 'AAC' is consistent with Pakistani printing practices of the era. This design was eventually replaced by updated security-feature versions and newer series in the early 2000s. The note was printed by Pakistan Security Printing Corporation (PSPC) at their Karachi facility.",
    "language_script": "Urdu (Nastaliq script), English (Latin script)",
    "languages": "ur,en",
    "serial_number": "AAC0440775",
    "serial_prefix": "AAC",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,
    "condition_grade": "VF",
    "condition_notes": "Note shows moderate circulation wear with intact paper integrity, minor soiling, and clear design elements.",
    "estimated_value_low": 1,
    "estimated_value_high": 3,
    "value_currency": "USD",
    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.5,
      "series_year": 0.4,
      "issue_year": 0.4,
      "issuer": 1.0,
      "signatures": 0.3,
      "printer": 0.85,
      "material": 1.0,
      "dimensions_mm": 0.9,
      "watermark": 0.95,
      "portrait_subject": 1.0,
      "reverse_subject": 0.9,
      "pick_number": 0.95,
      "serial_number": 1.0,
      "front_description": 0.9,
      "back_description": 1.0,
      "historical_notes": 0.85,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.88,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Pakistan", "currency": "PKR", "denomination": "10", "series_year": null, "series_name": null, "series_range": "1983\u20131999", "issue_year": null, "era": "1990_present", "legal_status": "demonetized", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "State Bank of Pakistan", "issuer_native": "\u0628\u06cc\u0646\u06a9 \u062f\u0648\u0644\u062a \u067e\u0627\u06a9\u0633\u062a\u0627\u0646", "signatures": null, "printer": "Pakistan Security Printing Corporation", "engraver": null, "material": "paper", "dimensions_mm": "140x70", "watermark": "Portrait of Muhammad Ali Jinnah", "security_features": "thread,microprint,intaglio", "color_palette": "#d4a5a5,#8b7355,#e8d4c8", "portrait_subject": "Muhammad Ali Jinnah", "reverse_subject": "Bab-e-Khyber (Khyber Pass gate)", "themes": "statesman,architecture,military", "commemorative": false, "commemorative_occasion": null, "pick_number": "39", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Bab-e-Khyber, the gate at the Khyber Pass near Peshawar, marking the historic entrance to the Indian subcontinent through the Hindu Kush mountains. The Khyber Pass has been strategically and historically significant for millennia as a trade and invasion route connecting Central Asia with South Asia. The fort structure shown features characteristic battlements and towers typical of Mughal-era frontier fortifications.", "back_description": "Muhammad Ali Jinnah (1876\u20131948), founder of Pakistan and its first Governor-General, universally known in Pakistan as Quaid-e-Azam (Great Leader). A barrister by training, Jinnah led the All-India Muslim League and the Pakistan Movement, successfully advocating for the creation of an independent Muslim state that became Pakistan in 1947. He is the most honoured figure on Pakistani currency and appears on virtually all Pakistani banknotes since independence.", "historical_notes": "This 10 Rupees note belongs to the series issued by the State Bank of Pakistan from the mid-1980s through the 1990s, replacing earlier designs. The P-39 series features Jinnah on the reverse (right side when viewing back) and various Pakistani landmarks on the front. The Bab-e-Khyber gate symbolizes Pakistan's northwestern frontier heritage and the Pashtun regions. Serial number format 'AAC0440775' with letter prefix 'AAC' is consistent with Pakistani printing practices of the era. This design was eventually replaced by updated security-feature versions and newer series in the early 2000s. The note was printed by Pakistan Security Printing Corporation (PSPC) at their Karachi facility.", "language_script": "Urdu (Nastaliq script), English (Latin script)", "languages": "ur,en", "serial_number": "AAC0440775", "serial_prefix": "AAC", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows moderate circulation wear with intact paper integrity, minor soiling, and clear design elements.", "estimated_value_low": 1, "estimated_value_high": 3, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.5, "series_year": 0.4, "issue_year": 0.4, "issuer": 1.0, "signatures": 0.3, "printer": 0.85, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.95, "portrait_subject": 1.0, "reverse_subject": 0.9, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.9, "back_description": 1.0, "historical_notes": 0.85, "condition_grade": 0.8}, "overall_confidence": 0.88, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.5, "series_year": 0.4, "issue_year": 0.4, "issuer": 1.0, "signatures": 0.3, "printer": 0.85, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.95, "portrait_subject": 1.0, "reverse_subject": 0.9, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.9, "back_description": 1.0, "historical_notes": 0.85, "condition_grade": 0.8}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:54:40
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Pakistan",
    "currency": "PKR",
    "denomination": "5",
    "series_year": null,
    "series_name": "1981-1982 Issue",
    "series_range": "1981-1999",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": "1999",
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "State Bank of Pakistan",
    "issuer_native": "حکومت پاکستان",
    "signatures": null,
    "printer": "Pakistan Security Printing Corporation",
    "engraver": null,
    "material": "paper",
    "dimensions_mm": "142x70",
    "watermark": "Crescent and star",
    "security_features": "thread,microprint,intaglio",
    "color_palette": "#8b7355,#d4c5b0,#f5e6d3",
    "portrait_subject": null,
    "reverse_subject": "National symbols of Pakistan",
    "themes": "architecture,transport,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": "38",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",
    "front_description": "The Khyber Pass gateway (Bab-e-Khyber), the historic mountain pass connecting Pakistan and Afghanistan through the Hindu Kush range. The pass has been a critical trade and invasion route for millennia, linking Central and South Asia. The fortified gate shown is a symbol of Pakistan's northwestern frontier and appears alongside railway tracks, representing the Khyber Pass Railway completed by the British in 1925, an engineering feat featuring 34 tunnels and 92 bridges through treacherous mountain terrain.",
    "back_description": "National symbols of Pakistan including the crescent moon and five-pointed star from the Pakistani flag, representing progress and light/knowledge respectively, alongside geometric Islamic patterns. The design incorporates traditional Mughal decorative motifs with arabesque patterns, reflecting Pakistan's Islamic heritage and cultural identity established at independence in 1947.",
    "historical_notes": "This note belongs to the 1981-1982 issue series of Pakistani rupees, printed by the Pakistan Security Printing Corporation. The series was in circulation from 1981 until approximately 1999 when it was replaced by updated designs. The serial number prefix 'AZ' indicates a specific print run within this series. The Khyber Pass imagery emphasizes Pakistan's geopolitical and historical significance as a crossroads of civilizations, while the reverse celebrates the Islamic Republic's national identity through religious and cultural symbolism. This 5 rupee denomination was a common circulating note during Pakistan's economic development period of the 1980s and 1990s.",
    "language_script": "Latin, Urdu (Nastaliq)",
    "languages": "en,ur",
    "serial_number": "AZ 82 4280588",
    "serial_prefix": "AZ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,
    "condition_grade": "AU",
    "condition_notes": "Note shows minimal handling with crisp paper and strong colors, minor edge wear visible",
    "estimated_value_low": 1,
    "estimated_value_high": 3,
    "value_currency": "USD",
    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.9,
      "series_year": 0.75,
      "issue_year": 0.5,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.85,
      "material": 1.0,
      "dimensions_mm": 0.9,
      "watermark": 0.9,
      "portrait_subject": 1.0,
      "reverse_subject": 0.95,
      "pick_number": 0.95,
      "serial_number": 1.0,
      "front_description": 0.95,
      "back_description": 0.9,
      "historical_notes": 0.85,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.9,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Pakistan", "currency": "PKR", "denomination": "5", "series_year": null, "series_name": "1981-1982 Issue", "series_range": "1981-1999", "issue_year": null, "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": "1999", "predecessor_currency": null, "successor_currency": null, "issuer": "State Bank of Pakistan", "issuer_native": "\u062d\u06a9\u0648\u0645\u062a \u067e\u0627\u06a9\u0633\u062a\u0627\u0646", "signatures": null, "printer": "Pakistan Security Printing Corporation", "engraver": null, "material": "paper", "dimensions_mm": "142x70", "watermark": "Crescent and star", "security_features": "thread,microprint,intaglio", "color_palette": "#8b7355,#d4c5b0,#f5e6d3", "portrait_subject": null, "reverse_subject": "National symbols of Pakistan", "themes": "architecture,transport,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "38", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The Khyber Pass gateway (Bab-e-Khyber), the historic mountain pass connecting Pakistan and Afghanistan through the Hindu Kush range. The pass has been a critical trade and invasion route for millennia, linking Central and South Asia. The fortified gate shown is a symbol of Pakistan's northwestern frontier and appears alongside railway tracks, representing the Khyber Pass Railway completed by the British in 1925, an engineering feat featuring 34 tunnels and 92 bridges through treacherous mountain terrain.", "back_description": "National symbols of Pakistan including the crescent moon and five-pointed star from the Pakistani flag, representing progress and light/knowledge respectively, alongside geometric Islamic patterns. The design incorporates traditional Mughal decorative motifs with arabesque patterns, reflecting Pakistan's Islamic heritage and cultural identity established at independence in 1947.", "historical_notes": "This note belongs to the 1981-1982 issue series of Pakistani rupees, printed by the Pakistan Security Printing Corporation. The series was in circulation from 1981 until approximately 1999 when it was replaced by updated designs. The serial number prefix 'AZ' indicates a specific print run within this series. The Khyber Pass imagery emphasizes Pakistan's geopolitical and historical significance as a crossroads of civilizations, while the reverse celebrates the Islamic Republic's national identity through religious and cultural symbolism. This 5 rupee denomination was a common circulating note during Pakistan's economic development period of the 1980s and 1990s.", "language_script": "Latin, Urdu (Nastaliq)", "languages": "en,ur", "serial_number": "AZ 82 4280588", "serial_prefix": "AZ", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "AU", "condition_notes": "Note shows minimal handling with crisp paper and strong colors, minor edge wear visible", "estimated_value_low": 1, "estimated_value_high": 3, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.9, "series_year": 0.75, "issue_year": 0.5, "issuer": 1.0, "signatures": 0.0, "printer": 0.85, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.95, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.85}, "overall_confidence": 0.9, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.9, "series_year": 0.75, "issue_year": 0.5, "issuer": 1.0, "signatures": 0.0, "printer": 0.85, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.95, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:54:56
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Pakistan",
    "currency": "PKR",
    "denomination": "1 Rupee and 10 Rupees",
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": "2023",
    "era": "1990_present",
    "legal_status": "in_circulation",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "State Bank of Pakistan",
    "issuer_native": "بینک دولت پاکستان",
    "signatures": null,
    "printer": null,
    "engraver": null,
    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": "microprint,intaglio",
    "color_palette": "#8b6f47,#e8d4b8,#d4a574",
    "portrait_subject": "Muhammad Ali Jinnah",
    "reverse_subject": "State Bank of Pakistan building, Karachi",
    "themes": "statesman,architecture",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",
    "front_description": "The State Bank of Pakistan building in Karachi on the 1 Rupee note. The State Bank building, headquarters of Pakistan's central bank, is a landmark of modernist architecture in Karachi, designed and built in the mid-20th century. The front of the 1 Rupee note shows this institutional building with Islamic geometric ornamental borders, representing the authority and stability of Pakistan's monetary system.",
    "back_description": "Muhammad Ali Jinnah (1876–1948), founder of Pakistan and its first Governor-General, appears on the 10 Rupees note back. Jinnah, known as Quaid-e-Azam (Great Leader), was a lawyer and politician who led the All-India Muslim League and the Pakistan Movement, successfully achieving the creation of Pakistan as an independent nation in 1947. His portrait appears on virtually all denominations of Pakistani currency as the founding father of the nation.",
    "historical_notes": "This image shows two different Pakistani banknotes photographed together: the front of a 1 Rupee note and the back of a 10 Rupees note dated 2023. The 1 Rupee note is among the smallest denominations in Pakistani currency and features the State Bank headquarters building. The 10 Rupees note bears Jinnah's portrait, continuing Pakistan's long tradition of honoring its founder on currency. The serial number CEQ2569199 is visible on the 10 Rupees note. Pakistani banknotes have undergone multiple series changes since independence in 1947, with modern issues featuring enhanced security features and updated designs while retaining traditional iconography.",
    "language_script": "Latin, Urdu (Nastaliq)",
    "languages": "en,ur",
    "serial_number": "CEQ2569199",
    "serial_prefix": "CEQ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,
    "condition_grade": "UNC",
    "condition_notes": null,
    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,
    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.3,
      "series_year": 0.5,
      "issue_year": 0.95,
      "issuer": 1.0,
      "signatures": 0.2,
      "printer": 0.3,
      "material": 0.9,
      "dimensions_mm": 0.3,
      "watermark": 0.4,
      "portrait_subject": 1.0,
      "reverse_subject": 0.9,
      "pick_number": 0.2,
      "serial_number": 1.0,
      "front_description": 0.9,
      "back_description": 1.0,
      "historical_notes": 0.85,
      "condition_grade": 0.9
    },
    "overall_confidence": 0.65,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Pakistan", "currency": "PKR", "denomination": "1 Rupee and 10 Rupees", "series_year": null, "series_name": null, "series_range": null, "issue_year": "2023", "era": "1990_present", "legal_status": "in_circulation", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "State Bank of Pakistan", "issuer_native": "\u0628\u06cc\u0646\u06a9 \u062f\u0648\u0644\u062a \u067e\u0627\u06a9\u0633\u062a\u0627\u0646", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": "microprint,intaglio", "color_palette": "#8b6f47,#e8d4b8,#d4a574", "portrait_subject": "Muhammad Ali Jinnah", "reverse_subject": "State Bank of Pakistan building, Karachi", "themes": "statesman,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The State Bank of Pakistan building in Karachi on the 1 Rupee note. The State Bank building, headquarters of Pakistan's central bank, is a landmark of modernist architecture in Karachi, designed and built in the mid-20th century. The front of the 1 Rupee note shows this institutional building with Islamic geometric ornamental borders, representing the authority and stability of Pakistan's monetary system.", "back_description": "Muhammad Ali Jinnah (1876\u20131948), founder of Pakistan and its first Governor-General, appears on the 10 Rupees note back. Jinnah, known as Quaid-e-Azam (Great Leader), was a lawyer and politician who led the All-India Muslim League and the Pakistan Movement, successfully achieving the creation of Pakistan as an independent nation in 1947. His portrait appears on virtually all denominations of Pakistani currency as the founding father of the nation.", "historical_notes": "This image shows two different Pakistani banknotes photographed together: the front of a 1 Rupee note and the back of a 10 Rupees note dated 2023. The 1 Rupee note is among the smallest denominations in Pakistani currency and features the State Bank headquarters building. The 10 Rupees note bears Jinnah's portrait, continuing Pakistan's long tradition of honoring its founder on currency. The serial number CEQ2569199 is visible on the 10 Rupees note. Pakistani banknotes have undergone multiple series changes since independence in 1947, with modern issues featuring enhanced security features and updated designs while retaining traditional iconography.", "language_script": "Latin, Urdu (Nastaliq)", "languages": "en,ur", "serial_number": "CEQ2569199", "serial_prefix": "CEQ", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": null, "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.3, "series_year": 0.5, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.2, "printer": 0.3, "material": 0.9, "dimensions_mm": 0.3, "watermark": 0.4, "portrait_subject": 1.0, "reverse_subject": 0.9, "pick_number": 0.2, "serial_number": 1.0, "front_description": 0.9, "back_description": 1.0, "historical_notes": 0.85, "condition_grade": 0.9}, "overall_confidence": 0.65, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.3, "series_year": 0.5, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.2, "printer": 0.3, "material": 0.9, "dimensions_mm": 0.3, "watermark": 0.4, "portrait_subject": 1.0, "reverse_subject": 0.9, "pick_number": 0.2, "serial_number": 1.0, "front_description": 0.9, "back_description": 1.0, "historical_notes": 0.85, "condition_grade": 0.9}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 06:54:56
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Pakistan",
    "currency": "PKR",
    "denomination": "1 Rupee",
    "series_year": null,
    "series_name": null,
    "series_range": "1983–present",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "in_circulation",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": "Government of Pakistan",
    "issuer_native": "حکومت پاکستان",
    "signatures": null,
    "printer": "Pakistan Security Printing Corporation",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "103x66",
    "watermark": null,
    "security_features": "microprint",
    "color_palette": "#8B7355,#D4C4B0,#A0522D",

    "portrait_subject": null,
    "reverse_subject": "Tomb of Allama Muhammad Iqbal",
    "themes": "architecture,statesman",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-27",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "The Tomb of Allama Muhammad Iqbal (Mazar-e-Iqbal) in Lahore, the final resting place of the national poet and philosopher Sir Muhammad Iqbal (1877–1938). Iqbal is considered the spiritual founder of Pakistan; his poetry inspired the Pakistan Movement and his vision of a separate Muslim state was instrumental in the creation of Pakistan in 1947. The tomb, built of red sandstone from Jodhpur and designed in the Mughal-Afghan style, is located in the Hazuri Bagh between the Badshahi Mosque and the Lahore Fort. The Urdu text at bottom reads 'Earning lawful livelihood is worship.'",
    "back_description": "Portrait of Muhammad Ali Jinnah (1876–1948), the founder of Pakistan and its first Governor-General. Known as Quaid-i-Azam ('Great Leader'), Jinnah led the All-India Muslim League and successfully negotiated the creation of Pakistan as an independent nation in August 1947. He is the most frequently depicted figure on Pakistani currency.",
    "historical_notes": "This is a MISMATCHED PAIR - the front shows a 1 Rupee note issued by the Government of Pakistan (not the State Bank), while the back shows a 10 Rupee note dated 2023 issued by the State Bank of Pakistan. The 1 Rupee note (P-27 series) was introduced in 1983 and remains legal tender as a Government of Pakistan issue. The 10 Rupee note shown on the reverse is a separate banknote entirely, part of the State Bank's standard circulation series featuring Jinnah on all denominations since 2005-2006 redesign.",
    "language_script": "Arabic,Latin",
    "languages": "ur,en",

    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,

    "condition_grade": "UNC",
    "condition_notes": "Both notes appear to be in uncirculated condition with no visible wear, folds, or damage",

    "estimated_value_low": 0.5,
    "estimated_value_high": 2,
    "value_currency": "USD",

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 0.7,
      "series_name": 0.5,
      "series_year": 0.4,
      "issue_year": 0.3,
      "issuer": 0.95,
      "signatures": 0.0,
      "printer": 0.8,
      "material": 0.95,
      "dimensions_mm": 0.7,
      "watermark": 0.3,
      "portrait_subject": 0.95,
      "reverse_subject": 0.95,
      "pick_number": 0.75,
      "serial_number": 0.0,
      "front_description": 0.9,
      "back_description": 0.95,
      "historical_notes": 0.9,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.45,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Pakistan", "currency": "PKR", "denomination": "1 Rupee", "series_year": null, "series_name": null, "series_range": "1983\u2013present", "issue_year": null, "era": "1990_present", "legal_status": "in_circulation", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "Government of Pakistan", "issuer_native": "\u062d\u06a9\u0648\u0645\u062a \u067e\u0627\u06a9\u0633\u062a\u0627\u0646", "signatures": null, "printer": "Pakistan Security Printing Corporation", "engraver": null, "material": "paper", "dimensions_mm": "103x66", "watermark": null, "security_features": "microprint", "color_palette": "#8B7355,#D4C4B0,#A0522D", "portrait_subject": null, "reverse_subject": "Tomb of Allama Muhammad Iqbal", "themes": "architecture,statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-27", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The Tomb of Allama Muhammad Iqbal (Mazar-e-Iqbal) in Lahore, the final resting place of the national poet and philosopher Sir Muhammad Iqbal (1877\u20131938). Iqbal is considered the spiritual founder of Pakistan; his poetry inspired the Pakistan Movement and his vision of a separate Muslim state was instrumental in the creation of Pakistan in 1947. The tomb, built of red sandstone from Jodhpur and designed in the Mughal-Afghan style, is located in the Hazuri Bagh between the Badshahi Mosque and the Lahore Fort. The Urdu text at bottom reads 'Earning lawful livelihood is worship.'", "back_description": "Portrait of Muhammad Ali Jinnah (1876\u20131948), the founder of Pakistan and its first Governor-General. Known as Quaid-i-Azam ('Great Leader'), Jinnah led the All-India Muslim League and successfully negotiated the creation of Pakistan as an independent nation in August 1947. He is the most frequently depicted figure on Pakistani currency.", "historical_notes": "This is a MISMATCHED PAIR - the front shows a 1 Rupee note issued by the Government of Pakistan (not the State Bank), while the back shows a 10 Rupee note dated 2023 issued by the State Bank of Pakistan. The 1 Rupee note (P-27 series) was introduced in 1983 and remains legal tender as a Government of Pakistan issue. The 10 Rupee note shown on the reverse is a separate banknote entirely, part of the State Bank's standard circulation series featuring Jinnah on all denominations since 2005-2006 redesign.", "language_script": "Arabic,Latin", "languages": "ur,en", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Both notes appear to be in uncirculated condition with no visible wear, folds, or damage", "estimated_value_low": 0.5, "estimated_value_high": 2, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 0.7, "series_name": 0.5, "series_year": 0.4, "issue_year": 0.3, "issuer": 0.95, "signatures": 0.0, "printer": 0.8, "material": 0.95, "dimensions_mm": 0.7, "watermark": 0.3, "portrait_subject": 0.95, "reverse_subject": 0.95, "pick_number": 0.75, "serial_number": 0.0, "front_description": 0.9, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.85}, "overall_confidence": 0.45, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 0.7, "series_name": 0.5, "series_year": 0.4, "issue_year": 0.3, "issuer": 0.95, "signatures": 0.0, "printer": 0.8, "material": 0.95, "dimensions_mm": 0.7, "watermark": 0.3, "portrait_subject": 0.95, "reverse_subject": 0.95, "pick_number": 0.75, "serial_number": 0.0, "front_description": 0.9, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:55:06
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Pakistan",
    "currency": "PKR",
    "denomination": "500 Rupees (front) / 10 Rupees (back)",
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "State Bank of Pakistan",
    "issuer_native": "اسٹیٹ بینک آف پاکستان",
    "signatures": null,
    "printer": null,
    "engraver": null,
    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": null,
    "color_palette": "#d4a373,#8faaaa,#e8d5c4",
    "portrait_subject": "Muhammad Ali Jinnah",
    "reverse_subject": "State Bank of Pakistan building (front) / Muhammad Ali Jinnah (back)",
    "themes": "statesman,architecture",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,
    "front_description": "The State Bank of Pakistan building in Karachi, the central bank headquarters designed in modernist style and completed in the 1960s. This institution has been the monetary authority of Pakistan since 1948, responsible for issuing currency and managing monetary policy. The building's architectural depiction emphasizes Pakistan's post-independence nation-building and economic development.",
    "back_description": "Muhammad Ali Jinnah (1876–1948), founder of Pakistan and its first Governor-General. Known as Quaid-e-Azam ('Great Leader'), Jinnah was a barrister, politician and statesman who led the All-India Muslim League and the Pakistan Movement, achieving the creation of Pakistan as an independent nation in 1947. His portrait appears on virtually all Pakistani banknotes as the most honoured figure in the nation's history.",
    "historical_notes": "MISMATCHED PAIR IDENTIFIED: The front image shows a 500 Rupees note featuring the State Bank of Pakistan building, while the back image shows a 10 Rupees note with Jinnah's portrait and serial number ATU07889929. These are NOT the front and back of the same banknote. The front (500 Rs) likely dates from 1980s–1990s based on the architectural design style and absence of modern security features. The back (10 Rs) bears '207' in the lower right corner which may indicate 2007 or later printing; the serial format and paper quality suggest a more recent issue from the 2000s–2010s. Both notes are from standard circulating series of Pakistani rupees issued by the State Bank of Pakistan. Without being able to examine matching pairs, precise Pick numbers and series identification cannot be reliably assigned.",
    "language_script": "Naskh and Nastaliq Arabic script, Latin script",
    "languages": "en,ur",
    "serial_number": "ATU07889929",
    "serial_prefix": "ATU",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,
    "condition_grade": "VF",
    "condition_notes": "Both notes show moderate circulation with visible creases, some edge wear, and minor soiling. The 500 Rs note (front) shows more aging and handling marks consistent with older paper stock.",
    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 1.0,
      "reverse_subject": 0.9,
      "pick_number": 0.0,
      "serial_number": 0.95,
      "front_description": 0.9,
      "back_description": 1.0,
      "historical_notes": 0.85,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.4,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Pakistan", "currency": "PKR", "denomination": "500 Rupees (front) / 10 Rupees (back)", "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": null, "legal_status": null, "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "State Bank of Pakistan", "issuer_native": "\u0627\u0633\u0679\u06cc\u0679 \u0628\u06cc\u0646\u06a9 \u0622\u0641 \u067e\u0627\u06a9\u0633\u062a\u0627\u0646", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": "#d4a373,#8faaaa,#e8d5c4", "portrait_subject": "Muhammad Ali Jinnah", "reverse_subject": "State Bank of Pakistan building (front) / Muhammad Ali Jinnah (back)", "themes": "statesman,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "The State Bank of Pakistan building in Karachi, the central bank headquarters designed in modernist style and completed in the 1960s. This institution has been the monetary authority of Pakistan since 1948, responsible for issuing currency and managing monetary policy. The building's architectural depiction emphasizes Pakistan's post-independence nation-building and economic development.", "back_description": "Muhammad Ali Jinnah (1876\u20131948), founder of Pakistan and its first Governor-General. Known as Quaid-e-Azam ('Great Leader'), Jinnah was a barrister, politician and statesman who led the All-India Muslim League and the Pakistan Movement, achieving the creation of Pakistan as an independent nation in 1947. His portrait appears on virtually all Pakistani banknotes as the most honoured figure in the nation's history.", "historical_notes": "MISMATCHED PAIR IDENTIFIED: The front image shows a 500 Rupees note featuring the State Bank of Pakistan building, while the back image shows a 10 Rupees note with Jinnah's portrait and serial number ATU07889929. These are NOT the front and back of the same banknote. The front (500 Rs) likely dates from 1980s\u20131990s based on the architectural design style and absence of modern security features. The back (10 Rs) bears '207' in the lower right corner which may indicate 2007 or later printing; the serial format and paper quality suggest a more recent issue from the 2000s\u20132010s. Both notes are from standard circulating series of Pakistani rupees issued by the State Bank of Pakistan. Without being able to examine matching pairs, precise Pick numbers and series identification cannot be reliably assigned.", "language_script": "Naskh and Nastaliq Arabic script, Latin script", "languages": "en,ur", "serial_number": "ATU07889929", "serial_prefix": "ATU", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Both notes show moderate circulation with visible creases, some edge wear, and minor soiling. The 500 Rs note (front) shows more aging and handling marks consistent with older paper stock.", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 1.0, "reverse_subject": 0.9, "pick_number": 0.0, "serial_number": 0.95, "front_description": 0.9, "back_description": 1.0, "historical_notes": 0.85, "condition_grade": 0.8}, "overall_confidence": 0.4, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 1.0, "reverse_subject": 0.9, "pick_number": 0.0, "serial_number": 0.95, "front_description": 0.9, "back_description": 1.0, "historical_notes": 0.85, "condition_grade": 0.8}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 06:55:06
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Pakistan",
    "currency": "PKR",
    "denomination": "500",
    "series_year": null,
    "series_name": null,
    "series_range": "1986–2006",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": "2006",
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": "State Bank of Pakistan",
    "issuer_native": "بینک دولت پاکستان",
    "signatures": null,
    "printer": "Pakistan Security Printing Corporation",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "165x73",
    "watermark": "Portrait of Muhammad Ali Jinnah",
    "security_features": "thread,watermark,intaglio",
    "color_palette": "#4a6b5a,#d4c4b0,#8b7355",

    "portrait_subject": null,
    "reverse_subject": "State Bank of Pakistan Building, Islamabad",
    "themes": "architecture,statesman",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-42",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "The State Bank of Pakistan headquarters building in Islamabad, a modernist architectural complex featuring a distinctive tall tower and lower administrative wings set against the Margalla Hills. The building serves as the central bank's main office, symbolizing Pakistan's monetary authority and economic sovereignty. Islamic geometric patterns appear in the decorative panel at left.",
    "back_description": "This image shows a Pakistan 10 Rupee note featuring Muhammad Ali Jinnah (1876–1948), the founder of Pakistan and its first Governor-General, known as Quaid-i-Azam (Great Leader). Jinnah was a lawyer and politician who led the All-India Muslim League and the Pakistan Movement, resulting in the creation of Pakistan in 1947. This appears to be from the 2017 issue based on the printed date visible.",
    "historical_notes": "CRITICAL: These two images are NOT matching front and back of the same note. The first image shows a 500 Rupee note from the old series (P-42, issued 1986–2006) featuring the State Bank building. The second image shows a 10 Rupee note from the current series (2006 onward, P-45l based on 2017 date) featuring Jinnah. The 500 Rupee note was part of the pre-2006 series before the comprehensive redesign that introduced the current uniform Jinnah portrait series. The old 500 was replaced by a redesigned 500 (P-49) featuring Jinnah on front and the Badshahi Mosque on back.",
    "language_script": "Arabic,Latin",
    "languages": "ur,en",

    "serial_number": "ATU0788929",
    "serial_prefix": "ATU",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "F",
    "condition_notes": "Moderate circulation wear, vertical folds, small tear/hole visible on right side of front image, general softening of details, dirt accumulation",

    "estimated_value_low": 2,
    "estimated_value_high": 8,
    "value_currency": "USD",

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 0.5,
      "series_name": 0.3,
      "series_year": 0.4,
      "issue_year": 0.3,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.7,
      "material": 0.95,
      "dimensions_mm": 0.7,
      "watermark": 0.8,
      "portrait_subject": 0.95,
      "reverse_subject": 0.85,
      "pick_number": 0.5,
      "serial_number": 0.95,
      "front_description": 0.85,
      "back_description": 0.9,
      "historical_notes": 0.9,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.45,
    "flags": ["mismatched_pair", "partial_note"]
  }
  ```

parsed_json:
  {"country": "Pakistan", "currency": "PKR", "denomination": "500", "series_year": null, "series_name": null, "series_range": "1986\u20132006", "issue_year": null, "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": "2006", "predecessor_currency": null, "successor_currency": null, "issuer": "State Bank of Pakistan", "issuer_native": "\u0628\u06cc\u0646\u06a9 \u062f\u0648\u0644\u062a \u067e\u0627\u06a9\u0633\u062a\u0627\u0646", "signatures": null, "printer": "Pakistan Security Printing Corporation", "engraver": null, "material": "paper", "dimensions_mm": "165x73", "watermark": "Portrait of Muhammad Ali Jinnah", "security_features": "thread,watermark,intaglio", "color_palette": "#4a6b5a,#d4c4b0,#8b7355", "portrait_subject": null, "reverse_subject": "State Bank of Pakistan Building, Islamabad", "themes": "architecture,statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-42", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The State Bank of Pakistan headquarters building in Islamabad, a modernist architectural complex featuring a distinctive tall tower and lower administrative wings set against the Margalla Hills. The building serves as the central bank's main office, symbolizing Pakistan's monetary authority and economic sovereignty. Islamic geometric patterns appear in the decorative panel at left.", "back_description": "This image shows a Pakistan 10 Rupee note featuring Muhammad Ali Jinnah (1876\u20131948), the founder of Pakistan and its first Governor-General, known as Quaid-i-Azam (Great Leader). Jinnah was a lawyer and politician who led the All-India Muslim League and the Pakistan Movement, resulting in the creation of Pakistan in 1947. This appears to be from the 2017 issue based on the printed date visible.", "historical_notes": "CRITICAL: These two images are NOT matching front and back of the same note. The first image shows a 500 Rupee note from the old series (P-42, issued 1986\u20132006) featuring the State Bank building. The second image shows a 10 Rupee note from the current series (2006 onward, P-45l based on 2017 date) featuring Jinnah. The 500 Rupee note was part of the pre-2006 series before the comprehensive redesign that introduced the current uniform Jinnah portrait series. The old 500 was replaced by a redesigned 500 (P-49) featuring Jinnah on front and the Badshahi Mosque on back.", "language_script": "Arabic,Latin", "languages": "ur,en", "serial_number": "ATU0788929", "serial_prefix": "ATU", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Moderate circulation wear, vertical folds, small tear/hole visible on right side of front image, general softening of details, dirt accumulation", "estimated_value_low": 2, "estimated_value_high": 8, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 0.5, "series_name": 0.3, "series_year": 0.4, "issue_year": 0.3, "issuer": 1.0, "signatures": 0.0, "printer": 0.7, "material": 0.95, "dimensions_mm": 0.7, "watermark": 0.8, "portrait_subject": 0.95, "reverse_subject": 0.85, "pick_number": 0.5, "serial_number": 0.95, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.9, "condition_grade": 0.8}, "overall_confidence": 0.45, "flags": ["mismatched_pair", "partial_note"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 0.5, "series_name": 0.3, "series_year": 0.4, "issue_year": 0.3, "issuer": 1.0, "signatures": 0.0, "printer": 0.7, "material": 0.95, "dimensions_mm": 0.7, "watermark": 0.8, "portrait_subject": 0.95, "reverse_subject": 0.85, "pick_number": 0.5, "serial_number": 0.95, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.9, "condition_grade": 0.8}


provider: openai
model: gpt-4o
status: ok
created_at: 2026-05-10 06:55:06
prompt_version: v3-year-reasoning
raw_response:
  {
    "country": "Pakistan",
    "currency": "Pakistani Rupee",
    "denomination": "500 Rupees",
    "series_year": null,
    "series_name": null,
    "series_range": "1986–2005",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "State Bank of Pakistan",
    "issuer_native": "بینک دولت پاکستان",
    "signatures": null,
    "printer": null,
    "engraver": null,
    "material": "paper",
    "dimensions_mm": null,
    "watermark": "Portrait of Quaid-e-Azam",
    "security_features": "thread",
    "color_palette": null,
    "portrait_subject": null,
    "reverse_subject": null,
    "themes": "architecture",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,
    "front_description": "The front depicts the State Bank of Pakistan headquarters in Islamabad. This building is symbolic of Pakistan's monetary authority and economic management.",
    "back_description": null,
    "historical_notes": "The 500 Rupees note was part of the Pakistani currency series from 1986 to 2005. The design includes the National Assembly building in Islamabad, representing the country's governmental and legislative framework.",
    "language_script": "en,ur",
    "languages": "en,ur",
    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,
    "condition_grade": "unknown",
    "condition_notes": null,
    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": "PKR",
    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 0.9,
      "series_name": 0.7,
      "series_year": 0.6,
      "issue_year": 0.6,
      "issuer": 1.0,
      "signatures": 0.5,
      "printer": 0.5,
      "material": 0.9,
      "dimensions_mm": 0.5,
      "watermark": 0.8,
      "portrait_subject": 0.5,
      "reverse_subject": 0.5,
      "pick_number": 0.5,
      "serial_number": 0.5,
      "front_description": 0.95,
      "back_description": 0.5,
      "historical_notes": 0.85,
      "condition_grade": 0.5
    },
    "overall_confidence": 0.8,
    "flags": ["mismatched_pair"]
  }

parsed_json:
  {"country": "Pakistan", "currency": "Pakistani Rupee", "denomination": "500 Rupees", "series_year": null, "series_name": null, "series_range": "1986\u20132005", "issue_year": null, "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "State Bank of Pakistan", "issuer_native": "\u0628\u06cc\u0646\u06a9 \u062f\u0648\u0644\u062a \u067e\u0627\u06a9\u0633\u062a\u0627\u0646", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": "Portrait of Quaid-e-Azam", "security_features": "thread", "color_palette": null, "portrait_subject": null, "reverse_subject": null, "themes": "architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "The front depicts the State Bank of Pakistan headquarters in Islamabad. This building is symbolic of Pakistan's monetary authority and economic management.", "back_description": null, "historical_notes": "The 500 Rupees note was part of the Pakistani currency series from 1986 to 2005. The design includes the National Assembly building in Islamabad, representing the country's governmental and legislative framework.", "language_script": "en,ur", "languages": "en,ur", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "unknown", "condition_notes": null, "estimated_value_low": null, "estimated_value_high": null, "value_currency": "PKR", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 0.9, "series_name": 0.7, "series_year": 0.6, "issue_year": 0.6, "issuer": 1.0, "signatures": 0.5, "printer": 0.5, "material": 0.9, "dimensions_mm": 0.5, "watermark": 0.8, "portrait_subject": 0.5, "reverse_subject": 0.5, "pick_number": 0.5, "serial_number": 0.5, "front_description": 0.95, "back_description": 0.5, "historical_notes": 0.85, "condition_grade": 0.5}, "overall_confidence": 0.8, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 0.9, "series_name": 0.7, "series_year": 0.6, "issue_year": 0.6, "issuer": 1.0, "signatures": 0.5, "printer": 0.5, "material": 0.9, "dimensions_mm": 0.5, "watermark": 0.8, "portrait_subject": 0.5, "reverse_subject": 0.5, "pick_number": 0.5, "serial_number": 0.5, "front_description": 0.95, "back_description": 0.5, "historical_notes": 0.85, "condition_grade": 0.5}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:55:19
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": null,
    "denomination": null,
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": null,
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,
    "material": null,
    "dimensions_mm": null,
    "watermark": null,
    "security_features": null,
    "color_palette": null,
    "portrait_subject": null,
    "reverse_subject": null,
    "themes": null,
    "commemorative": null,
    "commemorative_occasion": null,
    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,
    "front_description": "The front displays the State Bank of Pakistan issuer inscription and shows the Khyber Pass (Bab-e-Khyber), the historic mountain pass connecting Pakistan and Afghanistan through the Hindu Kush range. This strategic gateway has been a crucial trade and military route for millennia and represents Pakistan's northwestern frontier heritage. The denomination is 10 rupees.",
    "back_description": "The back displays Banco Central del Paraguay issuer inscription and shows the national coat of arms of Paraguay featuring a star within a wreath, along with a Paraguayan soldier in traditional uniform. The text indicates this is legal tender under Law No. 18 of March 25, 1952. The denomination is 1 guaraní. Printer attribution to Thomas De La Rue & Company, Limited is visible at the bottom.",
    "historical_notes": "These images show a critical mismatch: the front is from a Pakistani 10-rupee note issued by the State Bank of Pakistan, while the back is from a Paraguayan 1-guaraní note issued by the Banco Central del Paraguay under the 1952 monetary law. These are two entirely different banknotes from different countries, currencies, and time periods that have been erroneously paired. The Pakistani note appears to be from a modern series (likely 1990s–2000s based on design style). The Paraguayan note is from the L.1952 series, issued in the 1950s–1960s during Paraguay's post-war economic period. This pairing is invalid for cataloguing purposes.",
    "language_script": null,
    "languages": null,
    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,
    "condition_grade": "unknown",
    "condition_notes": null,
    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,
    "field_confidence": {
      "country": 0.0,
      "currency": 0.0,
      "denomination": 0.0,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 0.0,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.0,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.0,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.98,
      "condition_grade": 0.0
    },
    "overall_confidence": 0.0,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": null, "currency": null, "denomination": null, "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": null, "legal_status": null, "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": null, "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": null, "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": null, "portrait_subject": null, "reverse_subject": null, "themes": null, "commemorative": null, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "The front displays the State Bank of Pakistan issuer inscription and shows the Khyber Pass (Bab-e-Khyber), the historic mountain pass connecting Pakistan and Afghanistan through the Hindu Kush range. This strategic gateway has been a crucial trade and military route for millennia and represents Pakistan's northwestern frontier heritage. The denomination is 10 rupees.", "back_description": "The back displays Banco Central del Paraguay issuer inscription and shows the national coat of arms of Paraguay featuring a star within a wreath, along with a Paraguayan soldier in traditional uniform. The text indicates this is legal tender under Law No. 18 of March 25, 1952. The denomination is 1 guaran\u00ed. Printer attribution to Thomas De La Rue & Company, Limited is visible at the bottom.", "historical_notes": "These images show a critical mismatch: the front is from a Pakistani 10-rupee note issued by the State Bank of Pakistan, while the back is from a Paraguayan 1-guaran\u00ed note issued by the Banco Central del Paraguay under the 1952 monetary law. These are two entirely different banknotes from different countries, currencies, and time periods that have been erroneously paired. The Pakistani note appears to be from a modern series (likely 1990s\u20132000s based on design style). The Paraguayan note is from the L.1952 series, issued in the 1950s\u20131960s during Paraguay's post-war economic period. This pairing is invalid for cataloguing purposes.", "language_script": null, "languages": null, "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "unknown", "condition_notes": null, "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.0, "currency": 0.0, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.0, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.98, "condition_grade": 0.0}, "overall_confidence": 0.0, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.0, "currency": 0.0, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.0, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.98, "condition_grade": 0.0}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 06:55:19
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": null,
    "denomination": null,
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": null,
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": null,
    "dimensions_mm": null,
    "watermark": null,
    "security_features": null,
    "color_palette": null,

    "portrait_subject": null,
    "reverse_subject": null,
    "themes": null,
    "commemorative": null,
    "commemorative_occasion": null,

    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,

    "front_description": "Bab-e-Khyber (Khyber Gate), the iconic stone gateway at the entrance to the Khyber Pass near Peshawar, Pakistan. Built in 1964, this fort-like structure with its twin cylindrical towers marks the western end of the famous mountain pass connecting Pakistan to Afghanistan. The gateway flies the Pakistani flag and serves as both a historic landmark and symbolic entry point to the tribal regions.",
    "back_description": "Paraguayan Soldier ('Soldado Paraguayo') depicted in military uniform with rifle, representing the soldiers who fought in the Chaco War (1932-1935) against Bolivia. The coat of arms of Paraguay appears at left with the motto 'Paz y Justicia' (Peace and Justice). This design honors Paraguay's military history and national defense.",
    "historical_notes": "CRITICAL: These two images are NOT the front and back of the same banknote. The 'front' image shows a Pakistan 10 Rupees note from the State Bank of Pakistan's current series (2006-present), featuring the Khyber Pass gateway. The 'back' image shows a Paraguay 1 Guaraní note from Banco Central del Paraguay, printed by Thomas De La Rue & Company Limited under Decreto Ley No. 18 of March 25, 1952. The Paraguay note was issued in various printings from 1952 onwards. These are two completely different banknotes from different countries.",
    "language_script": null,
    "languages": null,

    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,

    "condition_grade": null,
    "condition_notes": "Cannot assess condition as images show two different banknotes from different countries",

    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,

    "field_confidence": {
      "country": 0.0,
      "currency": 0.0,
      "denomination": 0.0,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 0.0,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.0,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.0,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.9,
      "back_description": 0.9,
      "historical_notes": 0.95,
      "condition_grade": 0.0
    },
    "overall_confidence": 0.15,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": null, "currency": null, "denomination": null, "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": null, "legal_status": null, "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": null, "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": null, "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": null, "portrait_subject": null, "reverse_subject": null, "themes": null, "commemorative": null, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "Bab-e-Khyber (Khyber Gate), the iconic stone gateway at the entrance to the Khyber Pass near Peshawar, Pakistan. Built in 1964, this fort-like structure with its twin cylindrical towers marks the western end of the famous mountain pass connecting Pakistan to Afghanistan. The gateway flies the Pakistani flag and serves as both a historic landmark and symbolic entry point to the tribal regions.", "back_description": "Paraguayan Soldier ('Soldado Paraguayo') depicted in military uniform with rifle, representing the soldiers who fought in the Chaco War (1932-1935) against Bolivia. The coat of arms of Paraguay appears at left with the motto 'Paz y Justicia' (Peace and Justice). This design honors Paraguay's military history and national defense.", "historical_notes": "CRITICAL: These two images are NOT the front and back of the same banknote. The 'front' image shows a Pakistan 10 Rupees note from the State Bank of Pakistan's current series (2006-present), featuring the Khyber Pass gateway. The 'back' image shows a Paraguay 1 Guaran\u00ed note from Banco Central del Paraguay, printed by Thomas De La Rue & Company Limited under Decreto Ley No. 18 of March 25, 1952. The Paraguay note was issued in various printings from 1952 onwards. These are two completely different banknotes from different countries.", "language_script": null, "languages": null, "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": null, "condition_notes": "Cannot assess condition as images show two different banknotes from different countries", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.0, "currency": 0.0, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.0, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.0}, "overall_confidence": 0.15, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.0, "currency": 0.0, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.0, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.0}


provider: openai
model: gpt-4o
status: ok
created_at: 2026-05-10 06:55:19
prompt_version: v3-year-reasoning
raw_response:
  {
    "country": "Pakistan",
    "currency": "Rupee",
    "denomination": "10 Rupees",
    "series_year": null,
    "series_name": null,
    "series_range": "1985–2006",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": "2006",
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": "State Bank of Pakistan",
    "issuer_native": "بینک دولت پاکستان",
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "147x65",
    "watermark": "Portrait of Mohammed Ali Jinnah",
    "security_features": "microprint, thread",
    "color_palette": "#cccc99,#f5d5f5,#b68834",

    "portrait_subject": "Khyber Pass",
    "reverse_subject": null,
    "themes": "architecture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Khyber Pass, a historic trade route in the Hindu Kush mountain range, connecting Afghanistan and Pakistan. This pass has been of strategic military importance throughout history.",
    "back_description": null,
    "historical_notes": "The 10 Rupees note featuring the Khyber Pass was issued from 1985 until 2006. It was printed on paper and featured standard security features for the period.",
    "language_script": "Arabic",
    "languages": "ur",

    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,

    "condition_grade": "unknown",
    "condition_notes": null,

    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,

    "field_confidence": {
      "country": 0.95,
      "currency": 0.95,
      "denomination": 0.95,
      "series_name": 0.7,
      "series_year": 0.7,
      "issue_year": 0.5,
      "issuer": 0.95,
      "signatures": 0.5,
      "printer": 0.5,
      "material": 0.9,
      "dimensions_mm": 0.9,
      "watermark": 0.85,
      "portrait_subject": 0.85,
      "reverse_subject": 0.5,
      "pick_number": 0.5,
      "serial_number": 0.5,
      "front_description": 0.9,
      "back_description": 0.3,
      "historical_notes": 0.85,
      "condition_grade": 0.3
    },
    "overall_confidence": 0.75,
    "flags": ["mismatched_pair"]
  }

parsed_json:
  {"country": "Pakistan", "currency": "Rupee", "denomination": "10 Rupees", "series_year": null, "series_name": null, "series_range": "1985\u20132006", "issue_year": null, "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": "2006", "predecessor_currency": null, "successor_currency": null, "issuer": "State Bank of Pakistan", "issuer_native": "\u0628\u06cc\u0646\u06a9 \u062f\u0648\u0644\u062a \u067e\u0627\u06a9\u0633\u062a\u0627\u0646", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "147x65", "watermark": "Portrait of Mohammed Ali Jinnah", "security_features": "microprint, thread", "color_palette": "#cccc99,#f5d5f5,#b68834", "portrait_subject": "Khyber Pass", "reverse_subject": null, "themes": "architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Khyber Pass, a historic trade route in the Hindu Kush mountain range, connecting Afghanistan and Pakistan. This pass has been of strategic military importance throughout history.", "back_description": null, "historical_notes": "The 10 Rupees note featuring the Khyber Pass was issued from 1985 until 2006. It was printed on paper and featured standard security features for the period.", "language_script": "Arabic", "languages": "ur", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "unknown", "condition_notes": null, "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.95, "currency": 0.95, "denomination": 0.95, "series_name": 0.7, "series_year": 0.7, "issue_year": 0.5, "issuer": 0.95, "signatures": 0.5, "printer": 0.5, "material": 0.9, "dimensions_mm": 0.9, "watermark": 0.85, "portrait_subject": 0.85, "reverse_subject": 0.5, "pick_number": 0.5, "serial_number": 0.5, "front_description": 0.9, "back_description": 0.3, "historical_notes": 0.85, "condition_grade": 0.3}, "overall_confidence": 0.75, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.95, "currency": 0.95, "denomination": 0.95, "series_name": 0.7, "series_year": 0.7, "issue_year": 0.5, "issuer": 0.95, "signatures": 0.5, "printer": 0.5, "material": 0.9, "dimensions_mm": 0.9, "watermark": 0.85, "portrait_subject": 0.85, "reverse_subject": 0.5, "pick_number": 0.5, "serial_number": 0.5, "front_description": 0.9, "back_description": 0.3, "historical_notes": 0.85, "condition_grade": 0.3}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:56:00
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Peru",
    "currency": "Sol de Oro",
    "denomination": "1000 Soles de Oro",
    "series_year": null,
    "series_name": "Sol de Oro series",
    "series_range": "1979-1985",
    "issue_year": "1981",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1985",
    "predecessor_currency": "Sol",
    "successor_currency": "Inti",

    "issuer": "Banco Central de Reserva del Perú",
    "issuer_native": null,
    "signatures": "Presidente: [signature present]; Gerente General: [signature present]; Director: [signature present]",
    "printer": "Istituto Poligrafico e Zecca dello Stato - Roma",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "155x70",
    "watermark": "Portrait of Miguel Grau in clear field",
    "security_features": "watermark, intaglio, microprint, security_thread",
    "color_palette": "#2d5f4f,#d4a574,#c89664",

    "portrait_subject": "Miguel Grau Seminario",
    "reverse_subject": "Peruvian Navy biplane aircraft",
    "themes": "military, transport, statesman",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "122",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Peruvian Navy biplane aircraft in flight over coastal landscape. The design honors Peru's early aviation history and the contributions of the Peruvian Navy Air Service. The aircraft depicted represents the pioneering era of Peruvian military aviation in the early 20th century, connecting to the nation's maritime and defense traditions. The denomination appears as 'DIEZ NUEVOS SOLES' overprinted on the original '1000 SOLES DE ORO' note.",
    "back_description": "Miguel Grau Seminario (1834-1879), Grand Admiral of the Peruvian Navy and Peru's most celebrated naval hero. He commanded the ironclad Huáscar during the War of the Pacific against Chile and died in the Battle of Angamos on October 8, 1879. Known as 'El Caballero de los Mares' (The Gentleman of the Seas) for his chivalry in combat, Grau is considered Peru's greatest military hero and a symbol of national honor and maritime tradition. The coat of arms of Peru appears at center.",
    "historical_notes": "This note was issued on November 5, 1981 (as printed on the back) during the Sol de Oro period (1863-1985). The Sol de Oro experienced severe depreciation during Peru's economic crisis of the 1980s, leading to hyperinflation. This particular note shows an overprint of 'DIEZ NUEVOS SOLES' on the front, indicating it was revalued during the currency reform when the Inti replaced the Sol de Oro in 1985 at a rate of 1 Inti = 1000 Soles de Oro. The note was printed by the Italian State Printing Works (Istituto Poligrafico e Zecca dello Stato) in Rome. The pairing of Grau with naval aviation imagery reinforces Peru's maritime military heritage.",
    "language_script": "Latin",
    "languages": "es",

    "serial_number": "B4238352H",
    "serial_prefix": "B",
    "serial_suffix": "H",
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note shows moderate circulation with visible fold marks, some soiling, and edge wear. Colors remain relatively strong. The overprint is clear.",

    "estimated_value_low": 3,
    "estimated_value_high": 8,
    "value_currency": "USD",

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.85,
      "series_year": 0.75,
      "issue_year": 1.0,
      "issuer": 1.0,
      "signatures": 0.7,
      "printer": 1.0,
      "material": 1.0,
      "dimensions_mm": 0.85,
      "watermark": 0.9,
      "portrait_subject": 1.0,
      "reverse_subject": 0.85,
      "pick_number": 0.95,
      "serial_number": 1.0,
      "front_description": 0.9,
      "back_description": 1.0,
      "historical_notes": 0.9,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.92,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Peru", "currency": "Sol de Oro", "denomination": "1000 Soles de Oro", "series_year": null, "series_name": "Sol de Oro series", "series_range": "1979-1985", "issue_year": "1981", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1985", "predecessor_currency": "Sol", "successor_currency": "Inti", "issuer": "Banco Central de Reserva del Per\u00fa", "issuer_native": null, "signatures": "Presidente: [signature present]; Gerente General: [signature present]; Director: [signature present]", "printer": "Istituto Poligrafico e Zecca dello Stato - Roma", "engraver": null, "material": "paper", "dimensions_mm": "155x70", "watermark": "Portrait of Miguel Grau in clear field", "security_features": "watermark, intaglio, microprint, security_thread", "color_palette": "#2d5f4f,#d4a574,#c89664", "portrait_subject": "Miguel Grau Seminario", "reverse_subject": "Peruvian Navy biplane aircraft", "themes": "military, transport, statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": "122", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Peruvian Navy biplane aircraft in flight over coastal landscape. The design honors Peru's early aviation history and the contributions of the Peruvian Navy Air Service. The aircraft depicted represents the pioneering era of Peruvian military aviation in the early 20th century, connecting to the nation's maritime and defense traditions. The denomination appears as 'DIEZ NUEVOS SOLES' overprinted on the original '1000 SOLES DE ORO' note.", "back_description": "Miguel Grau Seminario (1834-1879), Grand Admiral of the Peruvian Navy and Peru's most celebrated naval hero. He commanded the ironclad Hu\u00e1scar during the War of the Pacific against Chile and died in the Battle of Angamos on October 8, 1879. Known as 'El Caballero de los Mares' (The Gentleman of the Seas) for his chivalry in combat, Grau is considered Peru's greatest military hero and a symbol of national honor and maritime tradition. The coat of arms of Peru appears at center.", "historical_notes": "This note was issued on November 5, 1981 (as printed on the back) during the Sol de Oro period (1863-1985). The Sol de Oro experienced severe depreciation during Peru's economic crisis of the 1980s, leading to hyperinflation. This particular note shows an overprint of 'DIEZ NUEVOS SOLES' on the front, indicating it was revalued during the currency reform when the Inti replaced the Sol de Oro in 1985 at a rate of 1 Inti = 1000 Soles de Oro. The note was printed by the Italian State Printing Works (Istituto Poligrafico e Zecca dello Stato) in Rome. The pairing of Grau with naval aviation imagery reinforces Peru's maritime military heritage.", "language_script": "Latin", "languages": "es", "serial_number": "B4238352H", "serial_prefix": "B", "serial_suffix": "H", "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows moderate circulation with visible fold marks, some soiling, and edge wear. Colors remain relatively strong. The overprint is clear.", "estimated_value_low": 3, "estimated_value_high": 8, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.85, "series_year": 0.75, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.7, "printer": 1.0, "material": 1.0, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 0.85, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.9, "back_description": 1.0, "historical_notes": 0.9, "condition_grade": 0.85}, "overall_confidence": 0.92, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.85, "series_year": 0.75, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.7, "printer": 1.0, "material": 1.0, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 0.85, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.9, "back_description": 1.0, "historical_notes": 0.9, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:56:03
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Peru",
    "currency": "PEN",
    "denomination": "1000",
    "series_year": "1988",
    "series_name": "Inti series",
    "series_range": "1985–1991",
    "issue_year": "1988",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991-07-01",
    "predecessor_currency": "Sol de Oro",
    "successor_currency": "Nuevo Sol",

    "issuer": "Banco Central de Reserva del Perú",
    "issuer_native": null,
    "signatures": "Director: (signature); Presidente: (signature); Gerente General: (signature)",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "140x70",
    "watermark": "Portrait in clear field at right",
    "security_features": "microprint,intaglio,see_through_register",
    "color_palette": "#8fbc8f,#daa520,#f5deb3",

    "portrait_subject": "Miguel Grau Seminario",
    "reverse_subject": "Peruvian fishermen and fishing industry",
    "themes": "military,industry,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-136b",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Peruvian artisanal fishermen hauling fishing nets on a traditional beach scene, with sailing vessels in the background. This scene represents Peru's vital fishing industry, one of the world's largest, centered on the anchovy catch from the nutrient-rich Humboldt Current. The denomination 'MIL SOLES DE ORO' (1000 Soles de Oro) is shown, though this was printed during the Inti currency period following Peru's 1985 currency reform that replaced the Sol with the Inti at 1000:1.",
    "back_description": "Miguel Grau Seminario (1834–1879), Peruvian naval officer and national hero known as 'El Caballero de los Mares' (The Gentleman of the Seas). Admiral Grau commanded the ironclad warship Huáscar during the War of the Pacific (1879–1883) against Chile. He died heroically in the Battle of Angamos on October 8, 1879, and is among Peru's most revered military figures. The Peruvian coat of arms appears at center, flanked by traditional Peruvian motifs. Date printed as '28 DE JUNIO DE 1988'.",
    "historical_notes": "This note belongs to the Peruvian Inti series (1985–1991), introduced during President Alan García's first administration to combat hyperinflation. The Inti replaced the Sol de Oro at a rate of 1 Inti = 1,000 Soles de Oro. Despite the reform, hyperinflation continued, and by 1990 Peru experienced one of the worst hyperinflation episodes in world history. The Inti was replaced by the Nuevo Sol in 1991 at a rate of 1 Nuevo Sol = 1,000,000 Intis. The note is dated June 28, 1988, a specific issue date printed on the back. The denomination is labeled 'MIL SOLES DE ORO' (1000 Soles de Oro), which was the naming convention carried over during the early Inti period before denomination names were updated. The Pick catalogue reference P-136b represents the 1988 issue with specific signature combinations. The serial number B9255845R includes the suffix 'R', which may indicate a specific printing series or replacement note status, though Peruvian replacement note conventions for this period are not definitively documented in standard references.",
    "language_script": "Latin",
    "languages": "es",

    "serial_number": "B9255845R",
    "serial_prefix": "B",
    "serial_suffix": "R",
    "replacement_note": null,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note shows moderate circulation with visible handling, some soiling, and minor edge wear. Colors remain reasonably strong.",

    "estimated_value_low": 2,
    "estimated_value_high": 8,
    "value_currency": "USD",

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.95,
      "series_year": 1.0,
      "issue_year": 1.0,
      "issuer": 1.0,
      "signatures": 0.7,
      "printer": 0.3,
      "material": 0.95,
      "dimensions_mm": 0.85,
      "watermark": 0.85,
      "portrait_subject": 0.98,
      "reverse_subject": 0.9,
      "pick_number": 0.9,
      "serial_number": 1.0,
      "front_description": 0.92,
      "back_description": 0.95,
      "historical_notes": 0.93,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.91,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Peru", "currency": "PEN", "denomination": "1000", "series_year": "1988", "series_name": "Inti series", "series_range": "1985\u20131991", "issue_year": "1988", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991-07-01", "predecessor_currency": "Sol de Oro", "successor_currency": "Nuevo Sol", "issuer": "Banco Central de Reserva del Per\u00fa", "issuer_native": null, "signatures": "Director: (signature); Presidente: (signature); Gerente General: (signature)", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "140x70", "watermark": "Portrait in clear field at right", "security_features": "microprint,intaglio,see_through_register", "color_palette": "#8fbc8f,#daa520,#f5deb3", "portrait_subject": "Miguel Grau Seminario", "reverse_subject": "Peruvian fishermen and fishing industry", "themes": "military,industry,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-136b", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Peruvian artisanal fishermen hauling fishing nets on a traditional beach scene, with sailing vessels in the background. This scene represents Peru's vital fishing industry, one of the world's largest, centered on the anchovy catch from the nutrient-rich Humboldt Current. The denomination 'MIL SOLES DE ORO' (1000 Soles de Oro) is shown, though this was printed during the Inti currency period following Peru's 1985 currency reform that replaced the Sol with the Inti at 1000:1.", "back_description": "Miguel Grau Seminario (1834\u20131879), Peruvian naval officer and national hero known as 'El Caballero de los Mares' (The Gentleman of the Seas). Admiral Grau commanded the ironclad warship Hu\u00e1scar during the War of the Pacific (1879\u20131883) against Chile. He died heroically in the Battle of Angamos on October 8, 1879, and is among Peru's most revered military figures. The Peruvian coat of arms appears at center, flanked by traditional Peruvian motifs. Date printed as '28 DE JUNIO DE 1988'.", "historical_notes": "This note belongs to the Peruvian Inti series (1985\u20131991), introduced during President Alan Garc\u00eda's first administration to combat hyperinflation. The Inti replaced the Sol de Oro at a rate of 1 Inti = 1,000 Soles de Oro. Despite the reform, hyperinflation continued, and by 1990 Peru experienced one of the worst hyperinflation episodes in world history. The Inti was replaced by the Nuevo Sol in 1991 at a rate of 1 Nuevo Sol = 1,000,000 Intis. The note is dated June 28, 1988, a specific issue date printed on the back. The denomination is labeled 'MIL SOLES DE ORO' (1000 Soles de Oro), which was the naming convention carried over during the early Inti period before denomination names were updated. The Pick catalogue reference P-136b represents the 1988 issue with specific signature combinations. The serial number B9255845R includes the suffix 'R', which may indicate a specific printing series or replacement note status, though Peruvian replacement note conventions for this period are not definitively documented in standard references.", "language_script": "Latin", "languages": "es", "serial_number": "B9255845R", "serial_prefix": "B", "serial_suffix": "R", "replacement_note": null, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows moderate circulation with visible handling, some soiling, and minor edge wear. Colors remain reasonably strong.", "estimated_value_low": 2, "estimated_value_high": 8, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.7, "printer": 0.3, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.85, "portrait_subject": 0.98, "reverse_subject": 0.9, "pick_number": 0.9, "serial_number": 1.0, "front_description": 0.92, "back_description": 0.95, "historical_notes": 0.93, "condition_grade": 0.85}, "overall_confidence": 0.91, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.7, "printer": 0.3, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.85, "portrait_subject": 0.98, "reverse_subject": 0.9, "pick_number": 0.9, "serial_number": 1.0, "front_description": 0.92, "back_description": 0.95, "historical_notes": 0.93, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:56:04
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Paraguay",
    "currency": "PYG",
    "denomination": "1",
    "series_year": "1952",
    "series_name": "Ley N° 18 series",
    "series_range": "1952–1963",
    "issue_year": "1952",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1963",
    "predecessor_currency": "Peso",
    "successor_currency": "Guaraní (new)",

    "issuer": "Banco Central del Paraguay",
    "issuer_native": "BANCO CENTRAL DEL PARAGUAY",
    "signatures": "Gerente: [signature]; Presidente: [signature]",
    "printer": "Thomas De La Rue & Company, Limited",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "156x67",
    "watermark": null,
    "security_features": "intaglio,microprint",
    "color_palette": "#2d5016,#e8d7c3,#1a1a1a",

    "portrait_subject": null,
    "reverse_subject": "Paraguayan soldier",
    "themes": "architecture,military,statesman",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-193b",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Palacio Legislativo (Legislative Palace) in Asunción, the seat of the National Congress of Paraguay. Constructed in various phases beginning in 1857 and completed in the early 20th century, this neoclassical building with its distinctive arcaded façade is one of Paraguay's most important government buildings. The inscription 'PALACIO LEGISLATIVO' identifies the structure below the main vignette. The note is denominated '1 UN GUARANÍ' and bears the legend 'REPÚBLICA DEL PARAGUAY' at top.",
    "back_description": "A Paraguayan soldier in traditional uniform standing at right, labeled 'SOLDADO PARAGUAYO' (Paraguayan soldier), representing the military heritage of Paraguay. At left is the national seal of Paraguay showing a lion and the motto 'PAZ Y JUSTICIA' (Peace and Justice) within the text 'REPÚBLICA DEL PARAGUAY'. The central guilloche contains the denomination 'UN GUARANÍ'. The issuing authority 'BANCO CENTRAL DEL PARAGUAY' appears at top, with text indicating the note's legal tender status under Law N° 18 of March 25, 1952.",
    "historical_notes": "This 1 Guaraní note was issued under Ley N° 18 del 25 de Marzo de 1952 (Law No. 18 of March 25, 1952), which established the Guaraní as Paraguay's new currency, replacing the peso at a rate of 100 pesos = 1 guaraní. The Ley N° 18 series was printed by Thomas De La Rue & Company and circulated from 1952 until being replaced by a new guaraní series in 1963. This first guaraní series featured architectural and military themes emphasizing Paraguayan national identity during the post-Chaco War era. The note's legal tender statement explicitly references the enabling legislation. The Guaraní currency unit takes its name from the indigenous Guaraní people, the predominant ethnic group of Paraguay.",
    "language_script": "Latin",
    "languages": "es",

    "serial_number": "A16395515",
    "serial_prefix": "A",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "XF",
    "condition_notes": "Note shows light handling with minor edge wear, good centering, intact corners, no tears or heavy folds visible",

    "estimated_value_low": 5,
    "estimated_value_high": 15,
    "value_currency": "USD",

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.9,
      "series_year": 0.95,
      "issue_year": 0.95,
      "issuer": 1.0,
      "signatures": 0.6,
      "printer": 1.0,
      "material": 0.95,
      "dimensions_mm": 0.85,
      "watermark": 0.5,
      "portrait_subject": 1.0,
      "reverse_subject": 0.95,
      "pick_number": 0.9,
      "serial_number": 0.95,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.9,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.92,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Paraguay", "currency": "PYG", "denomination": "1", "series_year": "1952", "series_name": "Ley N\u00b0 18 series", "series_range": "1952\u20131963", "issue_year": "1952", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1963", "predecessor_currency": "Peso", "successor_currency": "Guaran\u00ed (new)", "issuer": "Banco Central del Paraguay", "issuer_native": "BANCO CENTRAL DEL PARAGUAY", "signatures": "Gerente: [signature]; Presidente: [signature]", "printer": "Thomas De La Rue & Company, Limited", "engraver": null, "material": "paper", "dimensions_mm": "156x67", "watermark": null, "security_features": "intaglio,microprint", "color_palette": "#2d5016,#e8d7c3,#1a1a1a", "portrait_subject": null, "reverse_subject": "Paraguayan soldier", "themes": "architecture,military,statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-193b", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Palacio Legislativo (Legislative Palace) in Asunci\u00f3n, the seat of the National Congress of Paraguay. Constructed in various phases beginning in 1857 and completed in the early 20th century, this neoclassical building with its distinctive arcaded fa\u00e7ade is one of Paraguay's most important government buildings. The inscription 'PALACIO LEGISLATIVO' identifies the structure below the main vignette. The note is denominated '1 UN GUARAN\u00cd' and bears the legend 'REP\u00daBLICA DEL PARAGUAY' at top.", "back_description": "A Paraguayan soldier in traditional uniform standing at right, labeled 'SOLDADO PARAGUAYO' (Paraguayan soldier), representing the military heritage of Paraguay. At left is the national seal of Paraguay showing a lion and the motto 'PAZ Y JUSTICIA' (Peace and Justice) within the text 'REP\u00daBLICA DEL PARAGUAY'. The central guilloche contains the denomination 'UN GUARAN\u00cd'. The issuing authority 'BANCO CENTRAL DEL PARAGUAY' appears at top, with text indicating the note's legal tender status under Law N\u00b0 18 of March 25, 1952.", "historical_notes": "This 1 Guaran\u00ed note was issued under Ley N\u00b0 18 del 25 de Marzo de 1952 (Law No. 18 of March 25, 1952), which established the Guaran\u00ed as Paraguay's new currency, replacing the peso at a rate of 100 pesos = 1 guaran\u00ed. The Ley N\u00b0 18 series was printed by Thomas De La Rue & Company and circulated from 1952 until being replaced by a new guaran\u00ed series in 1963. This first guaran\u00ed series featured architectural and military themes emphasizing Paraguayan national identity during the post-Chaco War era. The note's legal tender statement explicitly references the enabling legislation. The Guaran\u00ed currency unit takes its name from the indigenous Guaran\u00ed people, the predominant ethnic group of Paraguay.", "language_script": "Latin", "languages": "es", "serial_number": "A16395515", "serial_prefix": "A", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "XF", "condition_notes": "Note shows light handling with minor edge wear, good centering, intact corners, no tears or heavy folds visible", "estimated_value_low": 5, "estimated_value_high": 15, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.9, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.6, "printer": 1.0, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.5, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.9, "serial_number": 0.95, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.8}, "overall_confidence": 0.92, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.9, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.6, "printer": 1.0, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.5, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.9, "serial_number": 0.95, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.8}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:56:23
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": null,
    "denomination": null,
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": null,
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": null,
    "dimensions_mm": null,
    "watermark": null,
    "security_features": null,
    "color_palette": null,

    "portrait_subject": null,
    "reverse_subject": null,
    "themes": null,
    "commemorative": null,
    "commemorative_occasion": null,

    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,

    "front_description": "This image shows a 1 Guaraní note from the República del Paraguay featuring the Palacio Legislativo (Legislative Palace) in Asunción. The palace, constructed in the early 20th century, serves as the seat of Paraguay's National Congress. The note is printed by Thomas de la Rue & Company, Limited, as indicated at the bottom of the note. The design features ornate green guilloche patterns framing the denomination '1' in each corner, with the central vignette showing the neoclassical facade of the Legislative Palace with its colonnade and pediment.",

    "back_description": "This image shows a 10 Nuevos Soles note from Peru issued by the Banco Central de Reserva del Perú, dated 10 de Setiembre de 1992. The note features José Abelardo Quiñones Gonzales (1914–1941), a Peruvian military aviator and national hero who died during the Ecuadorian–Peruvian War of 1941 when he deliberately crashed his damaged aircraft into an Ecuadorian position rather than abandon his mission. He was posthumously promoted to Captain and is regarded as Peru's greatest aviation hero. The reverse shows an aircraft and military scene commemorating his sacrifice. The serial number visible is A7241226F.",

    "historical_notes": "These two images appear to be from completely different banknotes: the front shows a Paraguayan 1 Guaraní note (likely from the 1950s–1960s era based on the Thomas de la Rue printing and design style), while the back shows a Peruvian 10 Nuevos Soles note from 1992. The Paraguayan Guaraní has been the currency of Paraguay since 1944, replacing the peso at 100 pesos = 1 guaraní. The Peruvian Nuevo Sol was introduced in 1991 to replace the Inti (which itself had replaced the Sol de Oro during hyperinflation), at a rate of 1,000,000 intis = 1 nuevo sol. The 1992 Peruvian note is part of the first series of Nuevos Soles notes. These images do not represent the front and back of the same banknote.",

    "language_script": null,
    "languages": null,

    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,

    "condition_grade": "unknown",
    "condition_notes": null,

    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,

    "field_confidence": {
      "country": 0.0,
      "currency": 0.0,
      "denomination": 0.0,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 0.0,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.0,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.0,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.0
    },
    "overall_confidence": 0.15,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": null, "currency": null, "denomination": null, "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": null, "legal_status": null, "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": null, "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": null, "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": null, "portrait_subject": null, "reverse_subject": null, "themes": null, "commemorative": null, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "This image shows a 1 Guaran\u00ed note from the Rep\u00fablica del Paraguay featuring the Palacio Legislativo (Legislative Palace) in Asunci\u00f3n. The palace, constructed in the early 20th century, serves as the seat of Paraguay's National Congress. The note is printed by Thomas de la Rue & Company, Limited, as indicated at the bottom of the note. The design features ornate green guilloche patterns framing the denomination '1' in each corner, with the central vignette showing the neoclassical facade of the Legislative Palace with its colonnade and pediment.", "back_description": "This image shows a 10 Nuevos Soles note from Peru issued by the Banco Central de Reserva del Per\u00fa, dated 10 de Setiembre de 1992. The note features Jos\u00e9 Abelardo Qui\u00f1ones Gonzales (1914\u20131941), a Peruvian military aviator and national hero who died during the Ecuadorian\u2013Peruvian War of 1941 when he deliberately crashed his damaged aircraft into an Ecuadorian position rather than abandon his mission. He was posthumously promoted to Captain and is regarded as Peru's greatest aviation hero. The reverse shows an aircraft and military scene commemorating his sacrifice. The serial number visible is A7241226F.", "historical_notes": "These two images appear to be from completely different banknotes: the front shows a Paraguayan 1 Guaran\u00ed note (likely from the 1950s\u20131960s era based on the Thomas de la Rue printing and design style), while the back shows a Peruvian 10 Nuevos Soles note from 1992. The Paraguayan Guaran\u00ed has been the currency of Paraguay since 1944, replacing the peso at 100 pesos = 1 guaran\u00ed. The Peruvian Nuevo Sol was introduced in 1991 to replace the Inti (which itself had replaced the Sol de Oro during hyperinflation), at a rate of 1,000,000 intis = 1 nuevo sol. The 1992 Peruvian note is part of the first series of Nuevos Soles notes. These images do not represent the front and back of the same banknote.", "language_script": null, "languages": null, "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "unknown", "condition_notes": null, "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.0, "currency": 0.0, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.0, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.0}, "overall_confidence": 0.15, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.0, "currency": 0.0, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.0, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.0}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 06:56:23
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": null,
    "denomination": null,
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": null,
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": null,
    "dimensions_mm": null,
    "watermark": null,
    "security_features": null,
    "color_palette": null,

    "portrait_subject": null,
    "reverse_subject": null,
    "themes": null,
    "commemorative": null,
    "commemorative_occasion": null,

    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,

    "front_description": "The Palacio Legislativo (Legislative Palace) in Asunción, Paraguay, seat of the Paraguayan Congress. This neoclassical building features a prominent colonnade with arched openings and serves as the meeting place for the Chamber of Deputies and Senate. The inscription 'REPÚBLICA DEL PARAGUAY' and 'UN GUARANÍ' confirm this as a Paraguayan 1 Guaraní note. Printed by Thomas De La Rue & Company, Limited as noted at bottom.",
    "back_description": "José Abelardo Quiñones Gonzales (1914–1941), Peruvian military aviator and national hero. He sacrificed his life during the 1941 Ecuadorian-Peruvian War by deliberately crashing his damaged aircraft into enemy positions at Quebrada Seca on July 23, 1941. He was posthumously promoted to Captain and declared a national hero. The scene shows a North American NA-50 aircraft similar to what he flew, with military buildings and palm trees in the background representing the Chiclayo air base. The coat of arms of Peru appears at upper right.",

    "historical_notes": "CRITICAL: These images show TWO DIFFERENT BANKNOTES that have been incorrectly paired. The front image is a Paraguay 1 Guaraní note from the series introduced in 1952, printed by Thomas De La Rue. The back image is a Peru 10 Nuevos Soles note dated September 10, 1992, from the Nuevo Sol currency series that replaced the Inti in 1991. These are completely different countries, currencies, and denominations. The Paraguay note (front) would be approximately P-193 series, while the Peru note (back) would be approximately P-151. Cannot provide unified catalogue data as this is not a matched pair.",

    "language_script": "Latin",
    "languages": "es",

    "serial_number": "A7241226F",
    "serial_prefix": "A",
    "serial_suffix": "F",
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "AU",
    "condition_notes": "Both notes appear to be in excellent condition with minimal handling marks, but they are not the same banknote",

    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,

    "field_confidence": {
      "country": 0.0,
      "currency": 0.0,
      "denomination": 0.0,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 0.0,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.0,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.95,
      "reverse_subject": 0.95,
      "pick_number": 0.0,
      "serial_number": 0.95,
      "front_description": 0.92,
      "back_description": 0.95,
      "historical_notes": 0.98,
      "condition_grade": 0.75
    },
    "overall_confidence": 0.15,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": null, "currency": null, "denomination": null, "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": null, "legal_status": null, "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": null, "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": null, "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": null, "portrait_subject": null, "reverse_subject": null, "themes": null, "commemorative": null, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "The Palacio Legislativo (Legislative Palace) in Asunci\u00f3n, Paraguay, seat of the Paraguayan Congress. This neoclassical building features a prominent colonnade with arched openings and serves as the meeting place for the Chamber of Deputies and Senate. The inscription 'REP\u00daBLICA DEL PARAGUAY' and 'UN GUARAN\u00cd' confirm this as a Paraguayan 1 Guaran\u00ed note. Printed by Thomas De La Rue & Company, Limited as noted at bottom.", "back_description": "Jos\u00e9 Abelardo Qui\u00f1ones Gonzales (1914\u20131941), Peruvian military aviator and national hero. He sacrificed his life during the 1941 Ecuadorian-Peruvian War by deliberately crashing his damaged aircraft into enemy positions at Quebrada Seca on July 23, 1941. He was posthumously promoted to Captain and declared a national hero. The scene shows a North American NA-50 aircraft similar to what he flew, with military buildings and palm trees in the background representing the Chiclayo air base. The coat of arms of Peru appears at upper right.", "historical_notes": "CRITICAL: These images show TWO DIFFERENT BANKNOTES that have been incorrectly paired. The front image is a Paraguay 1 Guaran\u00ed note from the series introduced in 1952, printed by Thomas De La Rue. The back image is a Peru 10 Nuevos Soles note dated September 10, 1992, from the Nuevo Sol currency series that replaced the Inti in 1991. These are completely different countries, currencies, and denominations. The Paraguay note (front) would be approximately P-193 series, while the Peru note (back) would be approximately P-151. Cannot provide unified catalogue data as this is not a matched pair.", "language_script": "Latin", "languages": "es", "serial_number": "A7241226F", "serial_prefix": "A", "serial_suffix": "F", "replacement_note": false, "replacement_indicator": null, "condition_grade": "AU", "condition_notes": "Both notes appear to be in excellent condition with minimal handling marks, but they are not the same banknote", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.0, "currency": 0.0, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.0, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.95, "reverse_subject": 0.95, "pick_number": 0.0, "serial_number": 0.95, "front_description": 0.92, "back_description": 0.95, "historical_notes": 0.98, "condition_grade": 0.75}, "overall_confidence": 0.15, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.0, "currency": 0.0, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.0, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.95, "reverse_subject": 0.95, "pick_number": 0.0, "serial_number": 0.95, "front_description": 0.92, "back_description": 0.95, "historical_notes": 0.98, "condition_grade": 0.75}


provider: openai
model: gpt-4o
status: ok
created_at: 2026-05-10 06:56:23
prompt_version: v3-year-reasoning
raw_response:
  {
    "country": "Paraguay",
    "currency": "Guarani",
    "denomination": "1 Guarani",
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "Banco Central del Paraguay",
    "issuer_native": null,
    "signatures": null,
    "printer": "Thomas De La Rue & Company, Limited",
    "engraver": null,
    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": null,
    "color_palette": null,
    "portrait_subject": null,
    "reverse_subject": null,
    "themes": "architecture",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,
    "front_description": "The front features the Palacio Legislativo, an important government building in Paraguay. It signifies the country's legislative power.",
    "back_description": "Mismatch with front image.",
    "historical_notes": "The 1 Guarani note from Paraguay depicts important national architecture, showing the Palacio Legislativo.",
    "language_script": "es",
    "languages": "es",
    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,
    "condition_grade": "unknown",
    "condition_notes": null,
    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,
    "field_confidence": {
      "country": 0.9,
      "currency": 0.9,
      "denomination": 0.9,
      "series_name": 0,
      "series_year": 0,
      "issue_year": 0,
      "issuer": 0.9,
      "signatures": 0,
      "printer": 0.9,
      "material": 0.8,
      "dimensions_mm": 0,
      "watermark": 0,
      "portrait_subject": 0,
      "reverse_subject": 0,
      "pick_number": 0,
      "serial_number": 0,
      "front_description": 0.9,
      "back_description": 0,
      "historical_notes": 0.9,
      "condition_grade": 0
    },
    "overall_confidence": 0.5,
    "flags": [
      "mismatched_pair"
    ]
  }

parsed_json:
  {"country": "Paraguay", "currency": "Guarani", "denomination": "1 Guarani", "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": null, "legal_status": null, "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "Banco Central del Paraguay", "issuer_native": null, "signatures": null, "printer": "Thomas De La Rue & Company, Limited", "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": null, "portrait_subject": null, "reverse_subject": null, "themes": "architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "The front features the Palacio Legislativo, an important government building in Paraguay. It signifies the country's legislative power.", "back_description": "Mismatch with front image.", "historical_notes": "The 1 Guarani note from Paraguay depicts important national architecture, showing the Palacio Legislativo.", "language_script": "es", "languages": "es", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "unknown", "condition_notes": null, "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.9, "currency": 0.9, "denomination": 0.9, "series_name": 0, "series_year": 0, "issue_year": 0, "issuer": 0.9, "signatures": 0, "printer": 0.9, "material": 0.8, "dimensions_mm": 0, "watermark": 0, "portrait_subject": 0, "reverse_subject": 0, "pick_number": 0, "serial_number": 0, "front_description": 0.9, "back_description": 0, "historical_notes": 0.9, "condition_grade": 0}, "overall_confidence": 0.5, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.9, "currency": 0.9, "denomination": 0.9, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.9, "signatures": 0.0, "printer": 0.9, "material": 0.8, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.9, "back_description": 0.0, "historical_notes": 0.9, "condition_grade": 0.0}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:56:26
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Peru",
    "currency": "Inti",
    "denomination": "1000 Intis",
    "series_year": "1987",
    "series_name": "Inti series",
    "series_range": "1985-1991",
    "issue_year": "1987",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Sol de Oro",
    "successor_currency": "Nuevo Sol",

    "issuer": "Banco Central de Reserva del Perú",
    "issuer_native": "Banco Central de Reserva del Perú",
    "signatures": "Director: [signature]; Presidente: [signature]; Gerente General: [signature]",
    "printer": "Thomas De La Rue and Company Limited",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "140x65",
    "watermark": "Portrait of Ricardo Palma in clear field",
    "security_features": "thread,microprint,intaglio",
    "color_palette": "#d4a76a,#c48b9f,#6b8e9a",

    "portrait_subject": "Ricardo Palma",
    "reverse_subject": "Ruins of Chan Chan",
    "themes": "writer,indigenous_culture,architecture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "136",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Ruins of Chan Chan, the largest pre-Columbian adobe city in the Americas, located near Trujillo in northern Peru. Built by the Chimú civilization around 850 CE and serving as their capital until conquest by the Inca Empire around 1470, Chan Chan is a UNESCO World Heritage Site and represents one of the most significant archaeological sites in Peru. The ruins feature intricate geometric patterns and frieze decorations characteristic of Chimú architecture.",
    "back_description": "Ricardo Palma (1833-1919), Peruvian author, scholar, librarian, and politician, best known as the creator of the literary genre 'tradiciones' (traditions), which blended historical fact with fiction to portray colonial and early republican Peru. He served as director of the Biblioteca Nacional del Perú (National Library of Peru) from 1884 to 1912, where he rebuilt the institution after its destruction during the War of the Pacific. The national coat of arms of Peru appears at center, featuring the vicuña, cinchona tree, and cornucopia.",
    "historical_notes": "This note is from Peru's Inti currency series, issued during a period of severe hyperinflation. The Inti was introduced on February 1, 1985, replacing the Sol de Oro at a rate of 1 Inti = 1,000 Soles de Oro. The date printed on this note is '26 DE JUNIO DE 1987', indicating a mid-series issue. The Inti itself rapidly lost value due to continuing hyperinflation, with inflation rates exceeding 7,000% by 1990. The currency was replaced by the Nuevo Sol in 1991 at a rate of 1 Nuevo Sol = 1,000,000 Intis. The series featured prominent Peruvian cultural and historical figures on the reverse and significant archaeological and natural sites on the front. Thomas De La Rue, the British security printer, produced these notes. The 1000 Intis denomination represents the hyperinflationary pressures of the late 1980s, as the government issued increasingly high-value notes to keep pace with price increases.",
    "language_script": "Latin",
    "languages": "es",

    "serial_number": "A3521222M",
    "serial_prefix": "A",
    "serial_suffix": "M",
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note shows moderate circulation with visible creases and handling marks but retains good structural integrity and color.",

    "estimated_value_low": 2,
    "estimated_value_high": 8,
    "value_currency": "USD",

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.95,
      "series_year": 1.0,
      "issue_year": 1.0,
      "issuer": 1.0,
      "signatures": 0.75,
      "printer": 1.0,
      "material": 0.95,
      "dimensions_mm": 0.9,
      "watermark": 0.9,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "pick_number": 0.95,
      "serial_number": 1.0,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.95,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Peru", "currency": "Inti", "denomination": "1000 Intis", "series_year": "1987", "series_name": "Inti series", "series_range": "1985-1991", "issue_year": "1987", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Sol de Oro", "successor_currency": "Nuevo Sol", "issuer": "Banco Central de Reserva del Per\u00fa", "issuer_native": "Banco Central de Reserva del Per\u00fa", "signatures": "Director: [signature]; Presidente: [signature]; Gerente General: [signature]", "printer": "Thomas De La Rue and Company Limited", "engraver": null, "material": "paper", "dimensions_mm": "140x65", "watermark": "Portrait of Ricardo Palma in clear field", "security_features": "thread,microprint,intaglio", "color_palette": "#d4a76a,#c48b9f,#6b8e9a", "portrait_subject": "Ricardo Palma", "reverse_subject": "Ruins of Chan Chan", "themes": "writer,indigenous_culture,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": "136", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Ruins of Chan Chan, the largest pre-Columbian adobe city in the Americas, located near Trujillo in northern Peru. Built by the Chim\u00fa civilization around 850 CE and serving as their capital until conquest by the Inca Empire around 1470, Chan Chan is a UNESCO World Heritage Site and represents one of the most significant archaeological sites in Peru. The ruins feature intricate geometric patterns and frieze decorations characteristic of Chim\u00fa architecture.", "back_description": "Ricardo Palma (1833-1919), Peruvian author, scholar, librarian, and politician, best known as the creator of the literary genre 'tradiciones' (traditions), which blended historical fact with fiction to portray colonial and early republican Peru. He served as director of the Biblioteca Nacional del Per\u00fa (National Library of Peru) from 1884 to 1912, where he rebuilt the institution after its destruction during the War of the Pacific. The national coat of arms of Peru appears at center, featuring the vicu\u00f1a, cinchona tree, and cornucopia.", "historical_notes": "This note is from Peru's Inti currency series, issued during a period of severe hyperinflation. The Inti was introduced on February 1, 1985, replacing the Sol de Oro at a rate of 1 Inti = 1,000 Soles de Oro. The date printed on this note is '26 DE JUNIO DE 1987', indicating a mid-series issue. The Inti itself rapidly lost value due to continuing hyperinflation, with inflation rates exceeding 7,000% by 1990. The currency was replaced by the Nuevo Sol in 1991 at a rate of 1 Nuevo Sol = 1,000,000 Intis. The series featured prominent Peruvian cultural and historical figures on the reverse and significant archaeological and natural sites on the front. Thomas De La Rue, the British security printer, produced these notes. The 1000 Intis denomination represents the hyperinflationary pressures of the late 1980s, as the government issued increasingly high-value notes to keep pace with price increases.", "language_script": "Latin", "languages": "es", "serial_number": "A3521222M", "serial_prefix": "A", "serial_suffix": "M", "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows moderate circulation with visible creases and handling marks but retains good structural integrity and color.", "estimated_value_low": 2, "estimated_value_high": 8, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.75, "printer": 1.0, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.85}, "overall_confidence": 0.95, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.75, "printer": 1.0, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:57:06
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Peru",
    "currency": "PEN",
    "denomination": "50 Intis",
    "series_year": "1987",
    "series_name": "Inti series",
    "series_range": "1985-1991",
    "issue_year": "1987",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Sol de Oro",
    "successor_currency": "Nuevo Sol",

    "issuer": "Banco Central de Reserva del Perú",
    "issuer_native": null,
    "signatures": "Presidente: signature visible; Director Gerente General: signature visible",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": null,
    "watermark": "Portrait of Ramón Castilla in clear field",
    "security_features": "microprint,intaglio,latent_image",
    "color_palette": "#d2691e,#f5deb3,#8b4513",

    "portrait_subject": "Ramón Castilla",
    "reverse_subject": "Industrial oil extraction scene",
    "themes": "statesman,military,industry",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "131",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Industrial oil extraction scene depicting Peru's petroleum industry with oil derrick, storage tanks, and workers. The imagery represents Peru's economic development and natural resource extraction during the 1980s, a period when the country sought to modernize its industrial infrastructure despite severe economic challenges including hyperinflation that led to the introduction of the Inti currency.",
    "back_description": "Ramón Castilla y Marquesado (1797-1867), Peruvian military leader and president who served four terms between 1845 and 1867. He is honored on Peruvian currency for abolishing slavery in Peru (1854), modernizing the state, establishing the first railroad and telegraph systems, and promoting education and constitutional reform. The note features the coat of arms of Peru with its iconic vicuña, cinchona tree, and cornucopia symbolizing the nation's natural wealth. Date printed: 26 DE JUNIO DE 1987.",
    "historical_notes": "This note belongs to the Inti series (1985-1991), Peru's short-lived currency introduced to replace the Sol de Oro at a rate of 1,000 to 1 during a period of severe hyperinflation. The Inti itself suffered rapid devaluation and was replaced by the Nuevo Sol in 1991 at a rate of 1,000,000 to 1. The 50 Intis denomination was issued on June 26, 1987, as indicated by the printed date on the back. Ramón Castilla appears on multiple denominations of this series, reflecting his status as one of Peru's most respected 19th-century statesmen. The front depicts industrial development themes common to Latin American banknotes of the era, emphasizing national economic progress.",
    "language_script": "Latin",
    "languages": "es",

    "serial_number": "B33589156",
    "serial_prefix": "B",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "UNC",
    "condition_notes": "Note appears uncirculated with sharp corners and no visible wear",

    "estimated_value_low": 1,
    "estimated_value_high": 3,
    "value_currency": "USD",

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 1.0,
      "series_year": 1.0,
      "issue_year": 1.0,
      "issuer": 1.0,
      "signatures": 0.6,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.0,
      "watermark": 0.9,
      "portrait_subject": 1.0,
      "reverse_subject": 0.85,
      "pick_number": 0.95,
      "serial_number": 1.0,
      "front_description": 0.9,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.92,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Peru", "currency": "PEN", "denomination": "50 Intis", "series_year": "1987", "series_name": "Inti series", "series_range": "1985-1991", "issue_year": "1987", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Sol de Oro", "successor_currency": "Nuevo Sol", "issuer": "Banco Central de Reserva del Per\u00fa", "issuer_native": null, "signatures": "Presidente: signature visible; Director Gerente General: signature visible", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": "Portrait of Ram\u00f3n Castilla in clear field", "security_features": "microprint,intaglio,latent_image", "color_palette": "#d2691e,#f5deb3,#8b4513", "portrait_subject": "Ram\u00f3n Castilla", "reverse_subject": "Industrial oil extraction scene", "themes": "statesman,military,industry", "commemorative": false, "commemorative_occasion": null, "pick_number": "131", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Industrial oil extraction scene depicting Peru's petroleum industry with oil derrick, storage tanks, and workers. The imagery represents Peru's economic development and natural resource extraction during the 1980s, a period when the country sought to modernize its industrial infrastructure despite severe economic challenges including hyperinflation that led to the introduction of the Inti currency.", "back_description": "Ram\u00f3n Castilla y Marquesado (1797-1867), Peruvian military leader and president who served four terms between 1845 and 1867. He is honored on Peruvian currency for abolishing slavery in Peru (1854), modernizing the state, establishing the first railroad and telegraph systems, and promoting education and constitutional reform. The note features the coat of arms of Peru with its iconic vicu\u00f1a, cinchona tree, and cornucopia symbolizing the nation's natural wealth. Date printed: 26 DE JUNIO DE 1987.", "historical_notes": "This note belongs to the Inti series (1985-1991), Peru's short-lived currency introduced to replace the Sol de Oro at a rate of 1,000 to 1 during a period of severe hyperinflation. The Inti itself suffered rapid devaluation and was replaced by the Nuevo Sol in 1991 at a rate of 1,000,000 to 1. The 50 Intis denomination was issued on June 26, 1987, as indicated by the printed date on the back. Ram\u00f3n Castilla appears on multiple denominations of this series, reflecting his status as one of Peru's most respected 19th-century statesmen. The front depicts industrial development themes common to Latin American banknotes of the era, emphasizing national economic progress.", "language_script": "Latin", "languages": "es", "serial_number": "B33589156", "serial_prefix": "B", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Note appears uncirculated with sharp corners and no visible wear", "estimated_value_low": 1, "estimated_value_high": 3, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 1.0, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.6, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 0.85, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.9, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.85}, "overall_confidence": 0.92, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 1.0, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.6, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 0.85, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.9, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 06:57:07
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Peru",
    "currency": "PEN",
    "denomination": "5000",
    "series_year": "1988",
    "series_name": "Inti series",
    "series_range": "1985–1991",
    "issue_year": "1988",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991-07-01",
    "predecessor_currency": "Sol",
    "successor_currency": "Nuevo Sol",

    "issuer": "Banco Central de Reserva del Perú",
    "issuer_native": "Banco Central de Reserva del Perú",
    "signatures": "Director: [signature]; Presidente: [signature]; Gerente General: [signature]",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "140x65",
    "watermark": "Portrait of Nicolás de Piérola in clear field",
    "security_features": "microprint,intaglio,watermark,see_through_register",
    "color_palette": "#8b4789,#d2691e,#2f4f2f",

    "portrait_subject": "Nicolás de Piérola",
    "reverse_subject": "Traditional Peruvian weaving scene",
    "themes": "statesman,indigenous_culture,industry",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "137",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Traditional Peruvian weaving scene depicting three indigenous figures engaged in textile production, with fishing vessels visible in the background on Lake Titicaca. This vignette represents Peru's rich indigenous weaving traditions, particularly those of the Andean communities where textile arts have been central to cultural identity for millennia. The scene honours the skilled artisans who produce the distinctive woven fabrics for which Peru is internationally renowned.",
    "back_description": "Nicolás de Piérola (1839–1913), Peruvian statesman who served twice as President of Peru (1879–1881 during the War of the Pacific, and 1895–1899). Known as 'El Califa,' Piérola implemented significant economic and administrative reforms during his second presidency, modernizing Peru's fiscal system and establishing the gold standard. His portrait appears alongside the coat of arms of Peru featuring the vicuña, cinchona tree, and cornucopia.",
    "historical_notes": "This note belongs to the Inti series (1985–1991), issued during a period of severe hyperinflation in Peru. The Inti replaced the Sol at 1,000:1 in 1985 under President Alan García's administration. The 5,000 Intis denomination was introduced on 28 June 1988 (as printed on the note) as inflation accelerated. By 1990, inflation reached over 7,000% annually. The Inti was replaced by the Nuevo Sol in 1991 at a conversion rate of 1,000,000:1, making this one of the last high-denomination notes of the hyperinflationary period. The note features Spanish text throughout and showcases both Peru's political history (Piérola) and its indigenous cultural heritage (traditional weaving). Pick catalogue reference P-137.",
    "language_script": "Latin",
    "languages": "es",

    "serial_number": "B1834722S",
    "serial_prefix": "B",
    "serial_suffix": "S",
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "XF",
    "condition_notes": "Note appears in excellent condition with minor handling wear visible",

    "estimated_value_low": 2,
    "estimated_value_high": 8,
    "value_currency": "USD",

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.95,
      "series_year": 1.0,
      "issue_year": 1.0,
      "issuer": 1.0,
      "signatures": 0.6,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.85,
      "watermark": 0.9,
      "portrait_subject": 0.95,
      "reverse_subject": 0.9,
      "pick_number": 0.95,
      "serial_number": 1.0,
      "front_description": 0.9,
      "back_description": 0.95,
      "historical_notes": 0.92,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.92,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Peru", "currency": "PEN", "denomination": "5000", "series_year": "1988", "series_name": "Inti series", "series_range": "1985\u20131991", "issue_year": "1988", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991-07-01", "predecessor_currency": "Sol", "successor_currency": "Nuevo Sol", "issuer": "Banco Central de Reserva del Per\u00fa", "issuer_native": "Banco Central de Reserva del Per\u00fa", "signatures": "Director: [signature]; Presidente: [signature]; Gerente General: [signature]", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "140x65", "watermark": "Portrait of Nicol\u00e1s de Pi\u00e9rola in clear field", "security_features": "microprint,intaglio,watermark,see_through_register", "color_palette": "#8b4789,#d2691e,#2f4f2f", "portrait_subject": "Nicol\u00e1s de Pi\u00e9rola", "reverse_subject": "Traditional Peruvian weaving scene", "themes": "statesman,indigenous_culture,industry", "commemorative": false, "commemorative_occasion": null, "pick_number": "137", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Traditional Peruvian weaving scene depicting three indigenous figures engaged in textile production, with fishing vessels visible in the background on Lake Titicaca. This vignette represents Peru's rich indigenous weaving traditions, particularly those of the Andean communities where textile arts have been central to cultural identity for millennia. The scene honours the skilled artisans who produce the distinctive woven fabrics for which Peru is internationally renowned.", "back_description": "Nicol\u00e1s de Pi\u00e9rola (1839\u20131913), Peruvian statesman who served twice as President of Peru (1879\u20131881 during the War of the Pacific, and 1895\u20131899). Known as 'El Califa,' Pi\u00e9rola implemented significant economic and administrative reforms during his second presidency, modernizing Peru's fiscal system and establishing the gold standard. His portrait appears alongside the coat of arms of Peru featuring the vicu\u00f1a, cinchona tree, and cornucopia.", "historical_notes": "This note belongs to the Inti series (1985\u20131991), issued during a period of severe hyperinflation in Peru. The Inti replaced the Sol at 1,000:1 in 1985 under President Alan Garc\u00eda's administration. The 5,000 Intis denomination was introduced on 28 June 1988 (as printed on the note) as inflation accelerated. By 1990, inflation reached over 7,000% annually. The Inti was replaced by the Nuevo Sol in 1991 at a conversion rate of 1,000,000:1, making this one of the last high-denomination notes of the hyperinflationary period. The note features Spanish text throughout and showcases both Peru's political history (Pi\u00e9rola) and its indigenous cultural heritage (traditional weaving). Pick catalogue reference P-137.", "language_script": "Latin", "languages": "es", "serial_number": "B1834722S", "serial_prefix": "B", "serial_suffix": "S", "replacement_note": false, "replacement_indicator": null, "condition_grade": "XF", "condition_notes": "Note appears in excellent condition with minor handling wear visible", "estimated_value_low": 2, "estimated_value_high": 8, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.6, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 0.95, "reverse_subject": 0.9, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.9, "back_description": 0.95, "historical_notes": 0.92, "condition_grade": 0.85}, "overall_confidence": 0.92, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.6, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 0.95, "reverse_subject": 0.9, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.9, "back_description": 0.95, "historical_notes": 0.92, "condition_grade": 0.85}


