# extraction_runs

provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:45:16
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Yugoslavia",
    "currency": "Yugoslav Dinar",
    "denomination": "20 Dinara",
    "series_year": "1992",
    "series_name": "Hyperinflation series",
    "series_range": "1992–1993",
    "issue_year": "1992",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "1994-01-24",
    "predecessor_currency": "Reformed Dinar 1990",
    "successor_currency": "1994 Dinar",

    "issuer": "National Bank of Yugoslavia",
    "issuer_native": "Народна Банка Југославије",
    "signatures": "Guverner: signature visible (name illegible)",
    "printer": "Zavod za Izradu Novčanica (Banknote Printing Works), Belgrade",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "120x60",
    "watermark": null,
    "security_features": "microprint,geometric_pattern",
    "color_palette": "#8b4789,#d4a76a,#f5e6d3",

    "portrait_subject": null,
    "reverse_subject": "Decorative geometric pattern with overprinted denomination",
    "themes": "commemorative",
    "commemorative": true,
    "commemorative_occasion": "Hyperinflation emergency issue with 10000 denomination overprint",

    "pick_number": "P-113a",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Yugoslav 20 Dinara note from the Socialist Federal Republic of Yugoslavia, printed in purple ink with trilingual text (Serbo-Croatian in Latin, Cyrillic, and Slovene scripts). The note features ornate guilloche patterns and denominational text in the three official scripts of Yugoslavia. This note is from the final hyperinflation period of Yugoslavia (1992–1994), when the country was disintegrating. The denomination '20' appears in the corners with text reading 'DVADESET DINARA' (twenty dinars) in various language variants.",

    "back_description": "The reverse features a geometric decorative pattern in orange-brown tones with a large overprint reading '10000' and 'DESET HILJADA DINARA' (ten thousand dinars). The text 'BEOGRAD 1992' (Belgrade 1992) appears at bottom left, along with a signature line for 'GUVERNER' (Governor). This overprint was applied during Yugoslavia's hyperinflation crisis when the original 20 Dinara note was revalued to 10,000 Dinara, a 500-fold increase reflecting the catastrophic inflation rate.",

    "historical_notes": "This is a 20 Dinara note from the Socialist Federal Republic of Yugoslavia overprinted with '10000' denomination during the Yugoslav hyperinflation of 1992–1994, one of the worst hyperinflations in history. As the country disintegrated amid civil war, the National Bank resorted to overprinting existing lower-denomination notes to create higher values rather than printing entirely new notes. The note shows '1992' printed on the back, confirming the year of issue. This practice of revalidation was common during the hyperinflation period when monthly inflation rates reached astronomical levels. The note was demonetized in January 1994 when the 'super dinar' reform attempted to stabilize the currency. The trilingual printing reflects Yugoslavia's official policy of representing its major constituent republics. Pick catalog P-113a documents this specific overprint variety. These hyperinflation notes are historically significant as artifacts of economic collapse and are relatively common in the collector market due to the massive quantities printed.",

    "language_script": "Latin, Cyrillic",
    "languages": "sr,sl,hr",

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

    "condition_grade": "VF",
    "condition_notes": "Well-circulated note with multiple folds, creases, and wear consistent with heavy use during hyperinflation period. Some staining and edge 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": 0.4,
      "printer": 0.85,
      "material": 1.0,
      "dimensions_mm": 0.8,
      "watermark": 0.5,
      "portrait_subject": 1.0,
      "reverse_subject": 0.9,
      "pick_number": 0.9,
      "serial_number": 0.3,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.9,
    "flags": ["blurry", "low_light"]
  }
  ```

parsed_json:
  {"country": "Yugoslavia", "currency": "Yugoslav Dinar", "denomination": "20 Dinara", "series_year": "1992", "series_name": "Hyperinflation series", "series_range": "1992\u20131993", "issue_year": "1992", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "1994-01-24", "predecessor_currency": "Reformed Dinar 1990", "successor_currency": "1994 Dinar", "issuer": "National Bank of Yugoslavia", "issuer_native": "\u041d\u0430\u0440\u043e\u0434\u043d\u0430 \u0411\u0430\u043d\u043a\u0430 \u0408\u0443\u0433\u043e\u0441\u043b\u0430\u0432\u0438\u0458\u0435", "signatures": "Guverner: signature visible (name illegible)", "printer": "Zavod za Izradu Nov\u010danica (Banknote Printing Works), Belgrade", "engraver": null, "material": "paper", "dimensions_mm": "120x60", "watermark": null, "security_features": "microprint,geometric_pattern", "color_palette": "#8b4789,#d4a76a,#f5e6d3", "portrait_subject": null, "reverse_subject": "Decorative geometric pattern with overprinted denomination", "themes": "commemorative", "commemorative": true, "commemorative_occasion": "Hyperinflation emergency issue with 10000 denomination overprint", "pick_number": "P-113a", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Yugoslav 20 Dinara note from the Socialist Federal Republic of Yugoslavia, printed in purple ink with trilingual text (Serbo-Croatian in Latin, Cyrillic, and Slovene scripts). The note features ornate guilloche patterns and denominational text in the three official scripts of Yugoslavia. This note is from the final hyperinflation period of Yugoslavia (1992\u20131994), when the country was disintegrating. The denomination '20' appears in the corners with text reading 'DVADESET DINARA' (twenty dinars) in various language variants.", "back_description": "The reverse features a geometric decorative pattern in orange-brown tones with a large overprint reading '10000' and 'DESET HILJADA DINARA' (ten thousand dinars). The text 'BEOGRAD 1992' (Belgrade 1992) appears at bottom left, along with a signature line for 'GUVERNER' (Governor). This overprint was applied during Yugoslavia's hyperinflation crisis when the original 20 Dinara note was revalued to 10,000 Dinara, a 500-fold increase reflecting the catastrophic inflation rate.", "historical_notes": "This is a 20 Dinara note from the Socialist Federal Republic of Yugoslavia overprinted with '10000' denomination during the Yugoslav hyperinflation of 1992\u20131994, one of the worst hyperinflations in history. As the country disintegrated amid civil war, the National Bank resorted to overprinting existing lower-denomination notes to create higher values rather than printing entirely new notes. The note shows '1992' printed on the back, confirming the year of issue. This practice of revalidation was common during the hyperinflation period when monthly inflation rates reached astronomical levels. The note was demonetized in January 1994 when the 'super dinar' reform attempted to stabilize the currency. The trilingual printing reflects Yugoslavia's official policy of representing its major constituent republics. Pick catalog P-113a documents this specific overprint variety. These hyperinflation notes are historically significant as artifacts of economic collapse and are relatively common in the collector market due to the massive quantities printed.", "language_script": "Latin, Cyrillic", "languages": "sr,sl,hr", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Well-circulated note with multiple folds, creases, and wear consistent with heavy use during hyperinflation period. Some staining and edge 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": 0.4, "printer": 0.85, "material": 1.0, "dimensions_mm": 0.8, "watermark": 0.5, "portrait_subject": 1.0, "reverse_subject": 0.9, "pick_number": 0.9, "serial_number": 0.3, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.95, "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": 0.95, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.4, "printer": 0.85, "material": 1.0, "dimensions_mm": 0.8, "watermark": 0.5, "portrait_subject": 1.0, "reverse_subject": 0.9, "pick_number": 0.9, "serial_number": 0.3, "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 07:45:57
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Yugoslavia",
    "currency": "Yugoslav Dinar",
    "denomination": "10000",
    "series_year": "1992",
    "series_name": "1992 hyperinflation series",
    "series_range": "1992–1993",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "1994-01-24",
    "predecessor_currency": "Yugoslav Dinar (1990)",
    "successor_currency": "New Dinar",

    "issuer": "National Bank of Yugoslavia",
    "issuer_native": "Народна Банка Југославије",
    "signatures": "Governor: signature visible dated 1.XI 1981",
    "printer": "Zavod za izradu novčanica i sastavni Narodne Banke Jugoslavije",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "154x74",
    "watermark": null,
    "security_features": "microprint,intaglio",
    "color_palette": "#d4a574,#8b4513,#f5deb3",

    "portrait_subject": "Young woman in national costume",
    "reverse_subject": "Agricultural harvest scene with combine harvester",
    "themes": "agriculture,youth,industry",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "116",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Young woman in traditional Yugoslav folk costume, representing the youth and agriculture of the nation. The design reflects the socialist-era emphasis on rural life and collective farming during the final years of the Socialist Federal Republic of Yugoslavia. The note was issued during the severe hyperinflation crisis that preceded the breakup of Yugoslavia.",
    "back_description": "Agricultural harvest scene featuring a combine harvester in wheat fields with workers gathering produce including corn, grapes, and other crops. This imagery symbolizes Yugoslavia's agricultural productivity and the importance of farming to the economy. The scene emphasizes the collective agricultural model promoted during the socialist period, though this note circulated during the country's economic collapse.",
    "historical_notes": "This 10,000 dinar note belongs to the 1992 series issued by the National Bank of Yugoslavia during the catastrophic hyperinflation that accompanied the disintegration of the Socialist Federal Republic of Yugoslavia. The series was printed with a 1981 signature date but circulated from 1992 to 1993 as the dinar collapsed in value. Within months, denominations escalated into the millions and billions as Yugoslavia experienced one of the worst hyperinflations in history, second only to Hungary 1946. The note was demonetized on January 24, 1994, when the 1994 New Dinar replaced the old dinar at a rate of 1:1,000,000. This series is characterized by reused designs from earlier periods with updated denominations to meet the demands of rapidly escalating prices. Pick number P-116.",
    "language_script": "Cyrillic,Latin",
    "languages": "sr",

    "serial_number": "AA9802812",
    "serial_prefix": "AA",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Light soiling and circulation wear visible, particularly at edges and corners. Some minor staining on reverse.",

    "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": 0.5,
      "issuer": 1.0,
      "signatures": 0.7,
      "printer": 0.9,
      "material": 1.0,
      "dimensions_mm": 0.9,
      "watermark": 0.4,
      "portrait_subject": 0.95,
      "reverse_subject": 0.95,
      "pick_number": 0.95,
      "serial_number": 1.0,
      "front_description": 0.9,
      "back_description": 0.9,
      "historical_notes": 0.95,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.9,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Yugoslavia", "currency": "Yugoslav Dinar", "denomination": "10000", "series_year": "1992", "series_name": "1992 hyperinflation series", "series_range": "1992\u20131993", "issue_year": null, "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "1994-01-24", "predecessor_currency": "Yugoslav Dinar (1990)", "successor_currency": "New Dinar", "issuer": "National Bank of Yugoslavia", "issuer_native": "\u041d\u0430\u0440\u043e\u0434\u043d\u0430 \u0411\u0430\u043d\u043a\u0430 \u0408\u0443\u0433\u043e\u0441\u043b\u0430\u0432\u0438\u0458\u0435", "signatures": "Governor: signature visible dated 1.XI 1981", "printer": "Zavod za izradu nov\u010danica i sastavni Narodne Banke Jugoslavije", "engraver": null, "material": "paper", "dimensions_mm": "154x74", "watermark": null, "security_features": "microprint,intaglio", "color_palette": "#d4a574,#8b4513,#f5deb3", "portrait_subject": "Young woman in national costume", "reverse_subject": "Agricultural harvest scene with combine harvester", "themes": "agriculture,youth,industry", "commemorative": false, "commemorative_occasion": null, "pick_number": "116", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Young woman in traditional Yugoslav folk costume, representing the youth and agriculture of the nation. The design reflects the socialist-era emphasis on rural life and collective farming during the final years of the Socialist Federal Republic of Yugoslavia. The note was issued during the severe hyperinflation crisis that preceded the breakup of Yugoslavia.", "back_description": "Agricultural harvest scene featuring a combine harvester in wheat fields with workers gathering produce including corn, grapes, and other crops. This imagery symbolizes Yugoslavia's agricultural productivity and the importance of farming to the economy. The scene emphasizes the collective agricultural model promoted during the socialist period, though this note circulated during the country's economic collapse.", "historical_notes": "This 10,000 dinar note belongs to the 1992 series issued by the National Bank of Yugoslavia during the catastrophic hyperinflation that accompanied the disintegration of the Socialist Federal Republic of Yugoslavia. The series was printed with a 1981 signature date but circulated from 1992 to 1993 as the dinar collapsed in value. Within months, denominations escalated into the millions and billions as Yugoslavia experienced one of the worst hyperinflations in history, second only to Hungary 1946. The note was demonetized on January 24, 1994, when the 1994 New Dinar replaced the old dinar at a rate of 1:1,000,000. This series is characterized by reused designs from earlier periods with updated denominations to meet the demands of rapidly escalating prices. Pick number P-116.", "language_script": "Cyrillic,Latin", "languages": "sr", "serial_number": "AA9802812", "serial_prefix": "AA", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Light soiling and circulation wear visible, particularly at edges and corners. Some minor staining on reverse.", "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": 0.5, "issuer": 1.0, "signatures": 0.7, "printer": 0.9, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.4, "portrait_subject": 0.95, "reverse_subject": 0.95, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.95, "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": 0.95, "issue_year": 0.5, "issuer": 1.0, "signatures": 0.7, "printer": 0.9, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.4, "portrait_subject": 0.95, "reverse_subject": 0.95, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:45:59
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Yugoslavia",
    "currency": "Yugoslav Dinar",
    "denomination": "5000000",
    "series_year": "1993",
    "series_name": "Hyperinflation series",
    "series_range": "1993–1994",
    "issue_year": "1993",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "1994-01-24",
    "predecessor_currency": "Yugoslav Dinar (1990)",
    "successor_currency": "Yugoslav Dinar (1994 reform)",

    "issuer": "National Bank of Yugoslavia",
    "issuer_native": "Народна Банка Југославије",
    "signatures": "Governor: signature visible but name not clearly legible",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "155x73",
    "watermark": null,
    "security_features": "microprint,intaglio",
    "color_palette": "#8b6f47,#c4a582,#4a3428",

    "portrait_subject": "Nikola Tesla monument statue",
    "reverse_subject": "Young woman with traditional Serbian jewelry",
    "themes": "scientist,industry,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-133",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Nikola Tesla monument statue, depicting the Serbian-American inventor and electrical engineer (1856–1943) who pioneered alternating current electricity systems. The monument shows Tesla in traditional Serbian dress with an Orthodox cross visible on his chest. Behind the statue is a depiction of the Đerdap I hydroelectric power station (Iron Gate I) on the Danube River, one of Europe's largest power plants, completed in 1972 as a joint Yugoslav-Romanian project. This note was issued during Yugoslavia's catastrophic hyperinflation period when the dinar lost value at an astronomical rate.",

    "back_description": "Portrait of a young Serbian woman wearing traditional folk costume and jewelry, representing Yugoslav cultural heritage. The woman wears an ornate necklace typical of Serbian traditional dress. The design emphasizes cultural identity during a period of severe economic crisis and impending national dissolution. Text reads 'NARODNA BANKA JUGOSLAVIJE' (National Bank of Yugoslavia) with denomination '100 DINARA' overprinted on the existing 5,000,000 note.",

    "historical_notes": "This is a critically important hyperinflation note from the final years of Yugoslavia. Printed in Belgrade in 1993 and dated 'BEOGRAD 1993', it belongs to the series issued during one of history's worst hyperinflations. The 5,000,000 dinar denomination itself indicates extreme currency devaluation. What makes this specimen particularly significant is the '100' overprint visible on the back — during 1993–1994, Yugoslavia went through multiple currency reforms attempting to stabilize the dinar, and existing high-denomination notes were sometimes overprinted with new values as emergency measures. The note shows 'FALSIFIKOVANIE SE KAŽNJAVA PO ZAKONU' (counterfeiting is punished by law) on the front. The hyperinflation peaked in January 1994 with monthly inflation reaching 313 million percent. The Yugoslav dinar was replaced on January 24, 1994, by a new dinar at a rate of 1 new dinar = 1,000,000,000 old dinars. This series represents the economic collapse that accompanied Yugoslavia's disintegration. Serial number visible: AH 6099593.",

    "language_script": "Cyrillic, Latin",
    "languages": "sr",

    "serial_number": "AH 6099593",
    "serial_prefix": "AH",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note shows moderate circulation with visible creases, soiling, and wear consistent with use during hyperinflation. Center fold visible. Edges show some fraying.",

    "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": 1.0,
      "issue_year": 1.0,
      "issuer": 1.0,
      "signatures": 0.5,
      "printer": 0.3,
      "material": 1.0,
      "dimensions_mm": 0.85,
      "watermark": 0.4,
      "portrait_subject": 0.95,
      "reverse_subject": 0.9,
      "pick_number": 0.95,
      "serial_number": 1.0,
      "front_description": 0.9,
      "back_description": 0.85,
      "historical_notes": 0.95,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.9,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Yugoslavia", "currency": "Yugoslav Dinar", "denomination": "5000000", "series_year": "1993", "series_name": "Hyperinflation series", "series_range": "1993\u20131994", "issue_year": "1993", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "1994-01-24", "predecessor_currency": "Yugoslav Dinar (1990)", "successor_currency": "Yugoslav Dinar (1994 reform)", "issuer": "National Bank of Yugoslavia", "issuer_native": "\u041d\u0430\u0440\u043e\u0434\u043d\u0430 \u0411\u0430\u043d\u043a\u0430 \u0408\u0443\u0433\u043e\u0441\u043b\u0430\u0432\u0438\u0458\u0435", "signatures": "Governor: signature visible but name not clearly legible", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "155x73", "watermark": null, "security_features": "microprint,intaglio", "color_palette": "#8b6f47,#c4a582,#4a3428", "portrait_subject": "Nikola Tesla monument statue", "reverse_subject": "Young woman with traditional Serbian jewelry", "themes": "scientist,industry,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-133", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Nikola Tesla monument statue, depicting the Serbian-American inventor and electrical engineer (1856\u20131943) who pioneered alternating current electricity systems. The monument shows Tesla in traditional Serbian dress with an Orthodox cross visible on his chest. Behind the statue is a depiction of the \u0110erdap I hydroelectric power station (Iron Gate I) on the Danube River, one of Europe's largest power plants, completed in 1972 as a joint Yugoslav-Romanian project. This note was issued during Yugoslavia's catastrophic hyperinflation period when the dinar lost value at an astronomical rate.", "back_description": "Portrait of a young Serbian woman wearing traditional folk costume and jewelry, representing Yugoslav cultural heritage. The woman wears an ornate necklace typical of Serbian traditional dress. The design emphasizes cultural identity during a period of severe economic crisis and impending national dissolution. Text reads 'NARODNA BANKA JUGOSLAVIJE' (National Bank of Yugoslavia) with denomination '100 DINARA' overprinted on the existing 5,000,000 note.", "historical_notes": "This is a critically important hyperinflation note from the final years of Yugoslavia. Printed in Belgrade in 1993 and dated 'BEOGRAD 1993', it belongs to the series issued during one of history's worst hyperinflations. The 5,000,000 dinar denomination itself indicates extreme currency devaluation. What makes this specimen particularly significant is the '100' overprint visible on the back \u2014 during 1993\u20131994, Yugoslavia went through multiple currency reforms attempting to stabilize the dinar, and existing high-denomination notes were sometimes overprinted with new values as emergency measures. The note shows 'FALSIFIKOVANIE SE KA\u017dNJAVA PO ZAKONU' (counterfeiting is punished by law) on the front. The hyperinflation peaked in January 1994 with monthly inflation reaching 313 million percent. The Yugoslav dinar was replaced on January 24, 1994, by a new dinar at a rate of 1 new dinar = 1,000,000,000 old dinars. This series represents the economic collapse that accompanied Yugoslavia's disintegration. Serial number visible: AH 6099593.", "language_script": "Cyrillic, Latin", "languages": "sr", "serial_number": "AH 6099593", "serial_prefix": "AH", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows moderate circulation with visible creases, soiling, and wear consistent with use during hyperinflation. Center fold visible. Edges show some fraying.", "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": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.5, "printer": 0.3, "material": 1.0, "dimensions_mm": 0.85, "watermark": 0.4, "portrait_subject": 0.95, "reverse_subject": 0.9, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.9, "back_description": 0.85, "historical_notes": 0.95, "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": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.5, "printer": 0.3, "material": 1.0, "dimensions_mm": 0.85, "watermark": 0.4, "portrait_subject": 0.95, "reverse_subject": 0.9, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.9, "back_description": 0.85, "historical_notes": 0.95, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:46:14
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Yugoslavia",
    "currency": "YUD",
    "denomination": "5000000 Dinara",
    "series_year": "1993",
    "series_name": "Hyperinflation series",
    "series_range": "1993",
    "issue_year": "1993",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "1994-01-24",
    "predecessor_currency": "Yugoslav Dinar (1992)",
    "successor_currency": "Yugoslav Dinar (1994 reform)",

    "issuer": "Narodna Banka Jugoslavije",
    "issuer_native": "Народна Банка Југославије",
    "signatures": null,
    "printer": null,
    "engraver": "D. Andrić",

    "material": "paper",
    "dimensions_mm": "144x71",
    "watermark": null,
    "security_features": "microprint,intaglio",
    "color_palette": "#d4a574,#8b7355,#1a1a1a",

    "portrait_subject": "Nikola Tesla",
    "reverse_subject": "Nikola Tesla",
    "themes": "scientist,commemorative",
    "commemorative": false,
    "commemorative_occasion": null,

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

    "front_description": "The front of this note bears ornate geometric guilloche patterns with the denomination 1000 in four corners and the central circular medallion displaying 1000. The text 'SOCIJALISTICKA FEDERATIVNA REPUBLIKA JUGOSLAVIJA' appears in both Latin and Cyrillic scripts. This is the obverse of a 1000 Dinar note that was later overprinted with 5000000 (5 million) denomination during Yugoslavia's extreme hyperinflation period of 1993, when inflation reached astronomical rates and the National Bank was forced to repeatedly overprint existing low-denomination notes with exponentially higher values rather than print entirely new designs.",
    "back_description": "Nikola Tesla (1856–1943), Serbian-American inventor, electrical engineer, mechanical engineer, and futurist best known for his contributions to the design of the modern alternating current (AC) electricity supply system. Tesla was born in Smiljan, Austrian Empire (modern-day Croatia), and his work revolutionized electrical power generation and distribution. He is one of the most celebrated figures in Serbian and Yugoslav cultural heritage, appearing on multiple Yugoslav and Serbian banknote series. The note displays the overprinted denomination of 5000000 DINARA and includes the serial number AA 4347908.",
    "historical_notes": "This note represents one of the most extreme episodes of hyperinflation in monetary history. The Socialist Federal Republic of Yugoslavia (SFRY) began disintegrating in 1991–1992, and by 1993 the Federal Republic of Yugoslavia (Serbia and Montenegro) was experiencing hyperinflation that peaked at approximately 313 million percent per month in January 1994. The Narodna Banka Jugoslavije resorted to overprinting existing lower-denomination notes with exponentially higher values—this 1000 Dinar note was overprinted to become 5,000,000 Dinara. The 1993 hyperinflation series included denominations up to 500 billion Dinara by December 1993. The currency collapsed completely by January 1994, when the 'super dinar' reform introduced a new dinar at a rate of 1:10,000,000 (ten million old dinara). The hyperinflation was driven by war costs from the Yugoslav Wars, international sanctions, and the complete breakdown of economic institutions. Pick #136 documents this specific overprint issue. Designer D. Andrić is credited on both sides.",
    "language_script": "Latin,Cyrillic",
    "languages": "sr",

    "serial_number": "AA 4347908",
    "serial_prefix": "AA",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "F",
    "condition_notes": "Note shows significant circulation with multiple vertical and horizontal folds, edge wear, and general soiling consistent with heavy use during hyperinflation period.",

    "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": 0.0,
      "printer": 0.3,
      "material": 0.95,
      "dimensions_mm": 0.85,
      "watermark": 0.0,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "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": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Yugoslavia", "currency": "YUD", "denomination": "5000000 Dinara", "series_year": "1993", "series_name": "Hyperinflation series", "series_range": "1993", "issue_year": "1993", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "1994-01-24", "predecessor_currency": "Yugoslav Dinar (1992)", "successor_currency": "Yugoslav Dinar (1994 reform)", "issuer": "Narodna Banka Jugoslavije", "issuer_native": "\u041d\u0430\u0440\u043e\u0434\u043d\u0430 \u0411\u0430\u043d\u043a\u0430 \u0408\u0443\u0433\u043e\u0441\u043b\u0430\u0432\u0438\u0458\u0435", "signatures": null, "printer": null, "engraver": "D. Andri\u0107", "material": "paper", "dimensions_mm": "144x71", "watermark": null, "security_features": "microprint,intaglio", "color_palette": "#d4a574,#8b7355,#1a1a1a", "portrait_subject": "Nikola Tesla", "reverse_subject": "Nikola Tesla", "themes": "scientist,commemorative", "commemorative": false, "commemorative_occasion": null, "pick_number": "136", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The front of this note bears ornate geometric guilloche patterns with the denomination 1000 in four corners and the central circular medallion displaying 1000. The text 'SOCIJALISTICKA FEDERATIVNA REPUBLIKA JUGOSLAVIJA' appears in both Latin and Cyrillic scripts. This is the obverse of a 1000 Dinar note that was later overprinted with 5000000 (5 million) denomination during Yugoslavia's extreme hyperinflation period of 1993, when inflation reached astronomical rates and the National Bank was forced to repeatedly overprint existing low-denomination notes with exponentially higher values rather than print entirely new designs.", "back_description": "Nikola Tesla (1856\u20131943), Serbian-American inventor, electrical engineer, mechanical engineer, and futurist best known for his contributions to the design of the modern alternating current (AC) electricity supply system. Tesla was born in Smiljan, Austrian Empire (modern-day Croatia), and his work revolutionized electrical power generation and distribution. He is one of the most celebrated figures in Serbian and Yugoslav cultural heritage, appearing on multiple Yugoslav and Serbian banknote series. The note displays the overprinted denomination of 5000000 DINARA and includes the serial number AA 4347908.", "historical_notes": "This note represents one of the most extreme episodes of hyperinflation in monetary history. The Socialist Federal Republic of Yugoslavia (SFRY) began disintegrating in 1991\u20131992, and by 1993 the Federal Republic of Yugoslavia (Serbia and Montenegro) was experiencing hyperinflation that peaked at approximately 313 million percent per month in January 1994. The Narodna Banka Jugoslavije resorted to overprinting existing lower-denomination notes with exponentially higher values\u2014this 1000 Dinar note was overprinted to become 5,000,000 Dinara. The 1993 hyperinflation series included denominations up to 500 billion Dinara by December 1993. The currency collapsed completely by January 1994, when the 'super dinar' reform introduced a new dinar at a rate of 1:10,000,000 (ten million old dinara). The hyperinflation was driven by war costs from the Yugoslav Wars, international sanctions, and the complete breakdown of economic institutions. Pick #136 documents this specific overprint issue. Designer D. Andri\u0107 is credited on both sides.", "language_script": "Latin,Cyrillic", "languages": "sr", "serial_number": "AA 4347908", "serial_prefix": "AA", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Note shows significant circulation with multiple vertical and horizontal folds, edge wear, and general soiling consistent with heavy use during hyperinflation period.", "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": 0.0, "printer": 0.3, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.0, "portrait_subject": 1.0, "reverse_subject": 1.0, "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": ["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": 0.0, "printer": 0.3, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.0, "portrait_subject": 1.0, "reverse_subject": 1.0, "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-opus-4-5
status: ok
created_at: 2026-05-10 07:46:14
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": "Yugoslav Dinar",
    "denomination": null,
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": "demonetized",
    "legal_status_date": "2003",
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": "National Bank of Yugoslavia",
    "issuer_native": "Народна банка Југославије",
    "signatures": null,
    "printer": "Zavod za izradu novčanica i kovanog novca",
    "engraver": "D. Andrić",

    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": "intaglio,microprint",
    "color_palette": "#8B7355,#4A6B8A,#D4B896",

    "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": null,
    "back_description": null,
    "historical_notes": "These images represent two DIFFERENT Yugoslav banknotes that have been incorrectly paired. The front image shows a 1000 Dinara note from the Socialist Federal Republic of Yugoslavia (SFRJ), likely from the 1981 series (P-92), featuring geometric and guilloche patterns with denomination text in multiple Yugoslav languages (Serbo-Croatian in Latin and Cyrillic, Slovenian, Macedonian). The back image shows a 5,000,000 Dinara note from the Federal Republic of Yugoslavia 1993 hyperinflation series (P-132), featuring Nikola Tesla (1856-1943), the Serbian-American inventor and electrical engineer famous for his contributions to AC power systems. The 1993 series was issued during Yugoslavia's catastrophic hyperinflation. These notes are from different countries (SFRJ vs FRY), different eras, and vastly different denominations, confirming they are not front/back of the same note.",
    "language_script": "Latin,Cyrillic",
    "languages": "sr,sl,mk",

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

    "condition_grade": "VF",
    "condition_notes": "Moderate circulation wear, creasing visible on both notes, some soiling",

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

    "field_confidence": {
      "country": 0.0,
      "currency": 0.9,
      "denomination": 0.0,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 0.85,
      "signatures": 0.0,
      "printer": 0.7,
      "material": 0.95,
      "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": 0.85,
      "condition_grade": 0.7
    },
    "overall_confidence": 0.15,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": null, "currency": "Yugoslav Dinar", "denomination": null, "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": null, "legal_status": "demonetized", "legal_status_date": "2003", "predecessor_currency": null, "successor_currency": null, "issuer": "National Bank of Yugoslavia", "issuer_native": "\u041d\u0430\u0440\u043e\u0434\u043d\u0430 \u0431\u0430\u043d\u043a\u0430 \u0408\u0443\u0433\u043e\u0441\u043b\u0430\u0432\u0438\u0458\u0435", "signatures": null, "printer": "Zavod za izradu nov\u010danica i kovanog novca", "engraver": "D. Andri\u0107", "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": "intaglio,microprint", "color_palette": "#8B7355,#4A6B8A,#D4B896", "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": null, "back_description": null, "historical_notes": "These images represent two DIFFERENT Yugoslav banknotes that have been incorrectly paired. The front image shows a 1000 Dinara note from the Socialist Federal Republic of Yugoslavia (SFRJ), likely from the 1981 series (P-92), featuring geometric and guilloche patterns with denomination text in multiple Yugoslav languages (Serbo-Croatian in Latin and Cyrillic, Slovenian, Macedonian). The back image shows a 5,000,000 Dinara note from the Federal Republic of Yugoslavia 1993 hyperinflation series (P-132), featuring Nikola Tesla (1856-1943), the Serbian-American inventor and electrical engineer famous for his contributions to AC power systems. The 1993 series was issued during Yugoslavia's catastrophic hyperinflation. These notes are from different countries (SFRJ vs FRY), different eras, and vastly different denominations, confirming they are not front/back of the same note.", "language_script": "Latin,Cyrillic", "languages": "sr,sl,mk", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Moderate circulation wear, creasing visible on both notes, some soiling", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.0, "currency": 0.9, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.85, "signatures": 0.0, "printer": 0.7, "material": 0.95, "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": 0.85, "condition_grade": 0.7}, "overall_confidence": 0.15, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.0, "currency": 0.9, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.85, "signatures": 0.0, "printer": 0.7, "material": 0.95, "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": 0.85, "condition_grade": 0.7}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:46:19
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Yugoslavia",
    "currency": "Yugoslav dinar",
    "denomination": "100 dinara",
    "series_year": "1992",
    "series_name": "1992 Reform series",
    "series_range": "1992–1993",
    "issue_year": "1992",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "1994",
    "predecessor_currency": "Yugoslav dinar (1990 reform)",
    "successor_currency": "Yugoslav dinar (1993 reform)",

    "issuer": "National Bank of Yugoslavia",
    "issuer_native": "Народна банка Југославије",
    "signatures": "Governor: signature visible but name illegible",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": "microprint,intaglio",
    "color_palette": "#d4c4a8,#8b9db8,#6b4e71",

    "portrait_subject": null,
    "reverse_subject": "Industrial riverport scene with cranes and vessels",
    "themes": "industry,transport,architecture",
    "commemorative": false,
    "commemorative_occasion": null,

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

    "front_description": "Stylized wheat stalks rendered in blue-grey guilloche engraving dominate the center field. The wheat motif represents Yugoslavia's agricultural heritage and was a common symbolic element on Yugoslav currency during the socialist and post-socialist periods. The denomination '100 СТО ДИНАРА / STO DINARA' appears prominently, with bilingual inscriptions in Cyrillic and Latin scripts reflecting Yugoslavia's multilingual character. The text 'ЈУГОСЛАВИЈА / JUGOSLAVIJA' appears at top right. Issue location 'BEOGRAD 1992. BEOGRAD' is printed at bottom left.",

    "back_description": "Industrial riverport scene with cranes and vessels at left, representing Yugoslavia's industrial and transport infrastructure along the Danube or Sava rivers. The vignette shows loading cranes, ships, and industrial architecture typical of Yugoslav riverine commerce in the late 20th century. The denomination '20 DINARA / ДВАДЕСЕТ ДИНАРА' appears at center right. The issuing authority 'НАРОДНА БАНКА ЈУГОСЛАВИЈЕ / NARODNA BANKA JUGOSLAVIJE / НАРОДНА БАНКА НАЈУГОСЛАВИЈА' is printed in three scripts (Serbian Cyrillic, Latin, and Macedonian Cyrillic) reflecting the federal nature of Yugoslavia. Date printed as '12.VII 1978.' with signatures of governor and deputy governor.",

    "historical_notes": "This note presents a clear mismatch between the front (100 dinara dated 1992) and back (20 dinara dated 1978). The front belongs to the 1992 reform series issued during the hyperinflationary period of the Federal Republic of Yugoslavia (Serbia and Montenegro) after the breakup. The 1992 series was short-lived, replaced in 1993 as hyperinflation accelerated. The back belongs to an earlier Socialist Federal Republic of Yugoslavia issue from 1978, during the Tito era. The industrial port scene was typical of Yugoslav socialist iconography celebrating economic development. The presence of three scripts (Serbian Cyrillic, Latin, Macedonian Cyrillic) on the back reflects the multi-ethnic, multi-script character of the SFRY. This is NOT a matching pair of front and back from the same note.",

    "language_script": "Latin,Cyrillic",
    "languages": "sr,mk",

    "serial_number": "CT 9262742",
    "serial_prefix": "CT",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Moderate circulation wear, center fold visible, corners show wear, some soiling present",

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

    "field_confidence": {
      "country": 0.95,
      "currency": 0.95,
      "denomination": 0.9,
      "series_name": 0.8,
      "series_year": 0.9,
      "issue_year": 0.9,
      "issuer": 0.95,
      "signatures": 0.4,
      "printer": 0.0,
      "material": 0.95,
      "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": 0.85,
      "back_description": 0.85,
      "historical_notes": 0.9,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.5,
    "flags": ["mismatched_pair", "blurry"]
  }
  ```

parsed_json:
  {"country": "Yugoslavia", "currency": "Yugoslav dinar", "denomination": "100 dinara", "series_year": "1992", "series_name": "1992 Reform series", "series_range": "1992\u20131993", "issue_year": "1992", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "1994", "predecessor_currency": "Yugoslav dinar (1990 reform)", "successor_currency": "Yugoslav dinar (1993 reform)", "issuer": "National Bank of Yugoslavia", "issuer_native": "\u041d\u0430\u0440\u043e\u0434\u043d\u0430 \u0431\u0430\u043d\u043a\u0430 \u0408\u0443\u0433\u043e\u0441\u043b\u0430\u0432\u0438\u0458\u0435", "signatures": "Governor: signature visible but name illegible", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": "microprint,intaglio", "color_palette": "#d4c4a8,#8b9db8,#6b4e71", "portrait_subject": null, "reverse_subject": "Industrial riverport scene with cranes and vessels", "themes": "industry,transport,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Stylized wheat stalks rendered in blue-grey guilloche engraving dominate the center field. The wheat motif represents Yugoslavia's agricultural heritage and was a common symbolic element on Yugoslav currency during the socialist and post-socialist periods. The denomination '100 \u0421\u0422\u041e \u0414\u0418\u041d\u0410\u0420\u0410 / STO DINARA' appears prominently, with bilingual inscriptions in Cyrillic and Latin scripts reflecting Yugoslavia's multilingual character. The text '\u0408\u0423\u0413\u041e\u0421\u041b\u0410\u0412\u0418\u0408\u0410 / JUGOSLAVIJA' appears at top right. Issue location 'BEOGRAD 1992. BEOGRAD' is printed at bottom left.", "back_description": "Industrial riverport scene with cranes and vessels at left, representing Yugoslavia's industrial and transport infrastructure along the Danube or Sava rivers. The vignette shows loading cranes, ships, and industrial architecture typical of Yugoslav riverine commerce in the late 20th century. The denomination '20 DINARA / \u0414\u0412\u0410\u0414\u0415\u0421\u0415\u0422 \u0414\u0418\u041d\u0410\u0420\u0410' appears at center right. The issuing authority '\u041d\u0410\u0420\u041e\u0414\u041d\u0410 \u0411\u0410\u041d\u041a\u0410 \u0408\u0423\u0413\u041e\u0421\u041b\u0410\u0412\u0418\u0408\u0415 / NARODNA BANKA JUGOSLAVIJE / \u041d\u0410\u0420\u041e\u0414\u041d\u0410 \u0411\u0410\u041d\u041a\u0410 \u041d\u0410\u0408\u0423\u0413\u041e\u0421\u041b\u0410\u0412\u0418\u0408\u0410' is printed in three scripts (Serbian Cyrillic, Latin, and Macedonian Cyrillic) reflecting the federal nature of Yugoslavia. Date printed as '12.VII 1978.' with signatures of governor and deputy governor.", "historical_notes": "This note presents a clear mismatch between the front (100 dinara dated 1992) and back (20 dinara dated 1978). The front belongs to the 1992 reform series issued during the hyperinflationary period of the Federal Republic of Yugoslavia (Serbia and Montenegro) after the breakup. The 1992 series was short-lived, replaced in 1993 as hyperinflation accelerated. The back belongs to an earlier Socialist Federal Republic of Yugoslavia issue from 1978, during the Tito era. The industrial port scene was typical of Yugoslav socialist iconography celebrating economic development. The presence of three scripts (Serbian Cyrillic, Latin, Macedonian Cyrillic) on the back reflects the multi-ethnic, multi-script character of the SFRY. This is NOT a matching pair of front and back from the same note.", "language_script": "Latin,Cyrillic", "languages": "sr,mk", "serial_number": "CT 9262742", "serial_prefix": "CT", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Moderate circulation wear, center fold visible, corners show wear, some soiling present", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.95, "currency": 0.95, "denomination": 0.9, "series_name": 0.8, "series_year": 0.9, "issue_year": 0.9, "issuer": 0.95, "signatures": 0.4, "printer": 0.0, "material": 0.95, "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": 0.85, "back_description": 0.85, "historical_notes": 0.9, "condition_grade": 0.8}, "overall_confidence": 0.5, "flags": ["mismatched_pair", "blurry"]}

field_confidence:
  {"country": 0.95, "currency": 0.95, "denomination": 0.9, "series_name": 0.8, "series_year": 0.9, "issue_year": 0.9, "issuer": 0.95, "signatures": 0.4, "printer": 0.0, "material": 0.95, "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": 0.85, "back_description": 0.85, "historical_notes": 0.9, "condition_grade": 0.8}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:46:19
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Yugoslavia",
    "currency": "YUD",
    "denomination": "100",
    "series_year": "1992",
    "series_name": "1992 Reform Dinar Series",
    "series_range": "1992–1993",
    "issue_year": "1992",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "1993",
    "predecessor_currency": "Yugoslav dinar (1990 series)",
    "successor_currency": "Yugoslav dinar (1993 October reform)",

    "issuer": "National Bank of Yugoslavia",
    "issuer_native": "Народна банка Југославије",
    "signatures": "Governor: Dragoslav Avramović",
    "printer": "Zavod za izradu novčanica i kovanog novca - Beograd",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "145x69",
    "watermark": "Geometric pattern with denomination",
    "security_features": "microprint,intaglio",
    "color_palette": "#8fa5b5,#c4b5a6,#6b7a8a",

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

    "pick_number": "P-112",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Abstract design featuring stylized wheat sheaves representing Yugoslav agriculture. The note displays the denomination '100' and text in both Cyrillic (ЈУГОСЛАВИЈА) and Latin (JUGOSLAVIJA) scripts, reflecting the multi-ethnic nature of the Federal Republic of Yugoslavia. The design is notably abstract compared to earlier Yugoslav issues, part of the emergency-style notes issued during the hyperinflationary period. Printed in Belgrade, 1992.",
    "back_description": "This appears to be a mismatched image showing a 20 dinara note from the 1978 series featuring a Yugoslav port scene with cargo cranes and ships, representing industrial development. The note shows serial number CT 9262742 and is dated 12.VIII.1978. This is NOT the reverse of the 100 dinara 1992 note shown in the front image.",
    "historical_notes": "The 100 dinara note from 1992 was issued by the Federal Republic of Yugoslavia (Serbia and Montenegro) during the early stages of hyperinflation that would devastate the country's economy. Following the breakup of Yugoslavia in 1991-1992, the rump state experienced severe economic crisis due to international sanctions and war costs. This series was quickly superseded as inflation accelerated, leading to the famous 500 billion dinar notes by 1993. The July 1992 reform (1 new dinar = 10 old dinars) was the first of several redenominations. The note was printed at the Yugoslav Institute for Manufacturing Banknotes and Coins in Belgrade (Zavod za izradu novčanica i kovanog novca).",
    "language_script": "Latin,Cyrillic",
    "languages": "sr,sh",

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

    "condition_grade": "VG",
    "condition_notes": "Significant circulation wear, multiple fold lines, some discoloration and staining visible. Paper shows handling marks throughout.",

    "estimated_value_low": 0.25,
    "estimated_value_high": 1.50,
    "value_currency": "USD",

    "field_confidence": {
      "country": 0.98,
      "currency": 0.95,
      "denomination": 0.98,
      "series_name": 0.85,
      "series_year": 0.98,
      "issue_year": 0.98,
      "issuer": 0.95,
      "signatures": 0.60,
      "printer": 0.90,
      "material": 0.95,
      "dimensions_mm": 0.75,
      "watermark": 0.60,
      "portrait_subject": 0.95,
      "reverse_subject": 0.30,
      "pick_number": 0.85,
      "serial_number": 0.0,
      "front_description": 0.88,
      "back_description": 0.50,
      "historical_notes": 0.85,
      "condition_grade": 0.80
    },
    "overall_confidence": 0.55,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Yugoslavia", "currency": "YUD", "denomination": "100", "series_year": "1992", "series_name": "1992 Reform Dinar Series", "series_range": "1992\u20131993", "issue_year": "1992", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "1993", "predecessor_currency": "Yugoslav dinar (1990 series)", "successor_currency": "Yugoslav dinar (1993 October reform)", "issuer": "National Bank of Yugoslavia", "issuer_native": "\u041d\u0430\u0440\u043e\u0434\u043d\u0430 \u0431\u0430\u043d\u043a\u0430 \u0408\u0443\u0433\u043e\u0441\u043b\u0430\u0432\u0438\u0458\u0435", "signatures": "Governor: Dragoslav Avramovi\u0107", "printer": "Zavod za izradu nov\u010danica i kovanog novca - Beograd", "engraver": null, "material": "paper", "dimensions_mm": "145x69", "watermark": "Geometric pattern with denomination", "security_features": "microprint,intaglio", "color_palette": "#8fa5b5,#c4b5a6,#6b7a8a", "portrait_subject": null, "reverse_subject": null, "themes": "agriculture", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-112", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Abstract design featuring stylized wheat sheaves representing Yugoslav agriculture. The note displays the denomination '100' and text in both Cyrillic (\u0408\u0423\u0413\u041e\u0421\u041b\u0410\u0412\u0418\u0408\u0410) and Latin (JUGOSLAVIJA) scripts, reflecting the multi-ethnic nature of the Federal Republic of Yugoslavia. The design is notably abstract compared to earlier Yugoslav issues, part of the emergency-style notes issued during the hyperinflationary period. Printed in Belgrade, 1992.", "back_description": "This appears to be a mismatched image showing a 20 dinara note from the 1978 series featuring a Yugoslav port scene with cargo cranes and ships, representing industrial development. The note shows serial number CT 9262742 and is dated 12.VIII.1978. This is NOT the reverse of the 100 dinara 1992 note shown in the front image.", "historical_notes": "The 100 dinara note from 1992 was issued by the Federal Republic of Yugoslavia (Serbia and Montenegro) during the early stages of hyperinflation that would devastate the country's economy. Following the breakup of Yugoslavia in 1991-1992, the rump state experienced severe economic crisis due to international sanctions and war costs. This series was quickly superseded as inflation accelerated, leading to the famous 500 billion dinar notes by 1993. The July 1992 reform (1 new dinar = 10 old dinars) was the first of several redenominations. The note was printed at the Yugoslav Institute for Manufacturing Banknotes and Coins in Belgrade (Zavod za izradu nov\u010danica i kovanog novca).", "language_script": "Latin,Cyrillic", "languages": "sr,sh", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "VG", "condition_notes": "Significant circulation wear, multiple fold lines, some discoloration and staining visible. Paper shows handling marks throughout.", "estimated_value_low": 0.25, "estimated_value_high": 1.5, "value_currency": "USD", "field_confidence": {"country": 0.98, "currency": 0.95, "denomination": 0.98, "series_name": 0.85, "series_year": 0.98, "issue_year": 0.98, "issuer": 0.95, "signatures": 0.6, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.75, "watermark": 0.6, "portrait_subject": 0.95, "reverse_subject": 0.3, "pick_number": 0.85, "serial_number": 0.0, "front_description": 0.88, "back_description": 0.5, "historical_notes": 0.85, "condition_grade": 0.8}, "overall_confidence": 0.55, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.98, "currency": 0.95, "denomination": 0.98, "series_name": 0.85, "series_year": 0.98, "issue_year": 0.98, "issuer": 0.95, "signatures": 0.6, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.75, "watermark": 0.6, "portrait_subject": 0.95, "reverse_subject": 0.3, "pick_number": 0.85, "serial_number": 0.0, "front_description": 0.88, "back_description": 0.5, "historical_notes": 0.85, "condition_grade": 0.8}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:46:44
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 20 dinar note from the Socialist Federal Republic of Yugoslavia (Socijalistička Federativna Republika Jugoslavija). The note features trilingual text in Latin, Cyrillic and another script identifying the issuing authority. This denomination and design type circulated during the Yugoslav era before the country's dissolution in the early 1990s. The note displays ornate guilloche patterns typical of Yugoslav currency of this period.",
    "back_description": "The back image shows a 100 Kwacha note from Zambia issued by the Bank of Zambia. The note features an African fish eagle (Haliaeetus vocifer), Zambia's national bird and a prominent symbol appearing on the country's coat of arms and flag. The eagle is depicted perched, with characteristic white head and breast plumage. The 2006 date visible on the security seal indicates this is from the 2006 series. The fish eagle represents Zambia's freedom and natural heritage, particularly its association with the Zambezi River and major water bodies.",
    "historical_notes": "These two images show banknotes from completely different countries and time periods: a Yugoslav 20 dinar note (pre-1992, during the existence of socialist Yugoslavia) and a Zambian 100 Kwacha note from 2006 (post-independence Zambia). This is a mismatched pair and cannot be catalogued as a single note. The Yugoslav dinar ceased to exist with the country's breakup in 1991-1992, while the Zambian Kwacha has been the currency of Zambia since independence in 1968, with various series issued including this 2006 series featuring wildlife imagery.",
    "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": 0.0,
    "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 20 dinar note from the Socialist Federal Republic of Yugoslavia (Socijalisti\u010dka Federativna Republika Jugoslavija). The note features trilingual text in Latin, Cyrillic and another script identifying the issuing authority. This denomination and design type circulated during the Yugoslav era before the country's dissolution in the early 1990s. The note displays ornate guilloche patterns typical of Yugoslav currency of this period.", "back_description": "The back image shows a 100 Kwacha note from Zambia issued by the Bank of Zambia. The note features an African fish eagle (Haliaeetus vocifer), Zambia's national bird and a prominent symbol appearing on the country's coat of arms and flag. The eagle is depicted perched, with characteristic white head and breast plumage. The 2006 date visible on the security seal indicates this is from the 2006 series. The fish eagle represents Zambia's freedom and natural heritage, particularly its association with the Zambezi River and major water bodies.", "historical_notes": "These two images show banknotes from completely different countries and time periods: a Yugoslav 20 dinar note (pre-1992, during the existence of socialist Yugoslavia) and a Zambian 100 Kwacha note from 2006 (post-independence Zambia). This is a mismatched pair and cannot be catalogued as a single note. The Yugoslav dinar ceased to exist with the country's breakup in 1991-1992, while the Zambian Kwacha has been the currency of Zambia since independence in 1968, with various series issued including this 2006 series featuring wildlife imagery.", "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": 0.0, "flags": ["mismatched_pair"]}

field_confidence:
[cell repeats an earlier one in this file: 414 characters]


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:46:44
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": "20 Dinara note from the Socialist Federal Republic of Yugoslavia. The denomination '20' appears prominently in the center within an ornate guilloche pattern. The value is written in multiple languages of the constituent republics: Serbian (Двадесет Динара), Slovenian (Dvajset Dinarjev), Croatian (Dvadeset Dinara), and Macedonian (Дваесет Динари). The circular text around the central numeral lists the six constituent republics. Designer credit 'M. Petrović fec.' and engraver credit 'D. Matić sc.' appear at bottom.",
    "back_description": "100 Kwacha note from the Bank of Zambia, dated 2006. Features the African Fish Eagle (Haliaeetus vocifer), Zambia's national bird, perched on a branch with palm trees in the background. The fish eagle appears on Zambia's coat of arms and is a symbol of the nation's freedom and strength. The coat of arms appears at lower left with the motto 'One Zambia One Nation' and the date 2006.",
    "historical_notes": "MISMATCHED PAIR: The front image shows a Yugoslav 20 Dinara note from the 1974-1981 series issued by the National Bank of Yugoslavia (Narodna Banka Jugoslavije) during the SFRY period. The back image shows a completely different note - a Zambian 100 Kwacha from 2006. These are not the same banknote. The Yugoslav note belongs to the socialist-era dinar series used until Yugoslavia's dissolution in the 1990s. The Zambian kwacha note is from the 'bird series' featuring Zambia's national bird.",
    "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": "Cannot assess - mismatched pair of 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": "20 Dinara note from the Socialist Federal Republic of Yugoslavia. The denomination '20' appears prominently in the center within an ornate guilloche pattern. The value is written in multiple languages of the constituent republics: Serbian (\u0414\u0432\u0430\u0434\u0435\u0441\u0435\u0442 \u0414\u0438\u043d\u0430\u0440\u0430), Slovenian (Dvajset Dinarjev), Croatian (Dvadeset Dinara), and Macedonian (\u0414\u0432\u0430\u0435\u0441\u0435\u0442 \u0414\u0438\u043d\u0430\u0440\u0438). The circular text around the central numeral lists the six constituent republics. Designer credit 'M. Petrovi\u0107 fec.' and engraver credit 'D. Mati\u0107 sc.' appear at bottom.", "back_description": "100 Kwacha note from the Bank of Zambia, dated 2006. Features the African Fish Eagle (Haliaeetus vocifer), Zambia's national bird, perched on a branch with palm trees in the background. The fish eagle appears on Zambia's coat of arms and is a symbol of the nation's freedom and strength. The coat of arms appears at lower left with the motto 'One Zambia One Nation' and the date 2006.", "historical_notes": "MISMATCHED PAIR: The front image shows a Yugoslav 20 Dinara note from the 1974-1981 series issued by the National Bank of Yugoslavia (Narodna Banka Jugoslavije) during the SFRY period. The back image shows a completely different note - a Zambian 100 Kwacha from 2006. These are not the same banknote. The Yugoslav note belongs to the socialist-era dinar series used until Yugoslavia's dissolution in the 1990s. The Zambian kwacha note is from the 'bird series' featuring Zambia's national bird.", "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": "Cannot assess - mismatched pair of 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:
[cell repeats an earlier one in this file: 412 characters]


provider: openai
model: gpt-4o
status: ok
created_at: 2026-05-10 07:46:44
prompt_version: v3-year-reasoning
raw_response:
  {
    "country": "Yugoslavia",
    "currency": "Yugoslav dinar",
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    "successor_currency": null,
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    "issuer_native": "Социјалистичка Федеративна Република Југославија",
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    },
    "overall_confidence": 0.6,
    "flags": [
      "mismatched_pair"
    ]
  }

parsed_json:
  {"country": "Yugoslavia", "currency": "Yugoslav dinar", "denomination": "20 dinara", "series_year": null, "series_name": null, "series_range": "1946\u20131992", "issue_year": null, "era": "1946_1989", "legal_status": "withdrawn", "legal_status_date": "1992", "predecessor_currency": null, "successor_currency": null, "issuer": "Socialist Federal Republic of Yugoslavia", "issuer_native": "\u0421\u043e\u0446\u0438\u0458\u0430\u043b\u0438\u0441\u0442\u0438\u0447\u043a\u0430 \u0424\u0435\u0434\u0435\u0440\u0430\u0442\u0438\u0432\u043d\u0430 \u0420\u0435\u043f\u0443\u0431\u043b\u0438\u043a\u0430 \u0408\u0443\u0433\u043e\u0441\u043b\u0430\u0432\u0438\u0458\u0430", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": "#c8a5a5,#e3e1c8,#8d5980", "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": "The note features the denomination in multiple languages representing the Republics of Yugoslavia during its existence.", "back_description": null, "historical_notes": "The Socialist Federal Republic of Yugoslavia issued currency until its dissolution in the early 1990s. The dinar was one of the country\u2019s official currencies during its socialist era.", "language_script": "Cyrillic, Latin", "languages": "sr,hr,bs", "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": 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": 1.0, "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": 0.8, "back_description": 0.0, "historical_notes": 0.9, "condition_grade": 0.0}, "overall_confidence": 0.6, "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": 1.0, "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": 0.8, "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 07:47:22
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zambia",
    "currency": "ZMK",
    "denomination": "50 Kwacha",
    "series_year": null,
    "series_name": null,
    "series_range": "1986-1988",
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "2013",
    "predecessor_currency": "Zambian Pound",
    "successor_currency": "Zambian Kwacha (ZMW)",

    "issuer": "Bank of Zambia",
    "issuer_native": null,
    "signatures": "Governor: signature visible but name illegible",
    "printer": "Thomas De La Rue and Company Limited",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "145x72",
    "watermark": "African Fish Eagle head in clear field at right",
    "security_features": "watermark,intaglio,microprint",
    "color_palette": "#8b4789,#d2b48c,#4a4a4a",

    "portrait_subject": "Kenneth Kaunda",
    "reverse_subject": "Mulungushi Hall",
    "themes": "statesman,architecture,wildlife,independence",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "28a",
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    "wpm_id": null,
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    "front_description": "Mulungushi Hall in Lusaka, the national convention center of Zambia completed in 1965, which hosted the independence celebrations and has been the venue for major political and cultural events. The building is shown in its modernist architectural style with distinctive red tower and horizontal wings. At left is a statue depicting a freedom fighter raising broken chains aloft, symbolizing Zambia's liberation from colonial rule.",
    "back_description": "Kenneth Kaunda (1924-2021), first President of Zambia from independence in 1964 to 1991, a founding father of the nation who led the United National Independence Party (UNIP) and the struggle against British colonial rule. The note also features the African Fish Eagle at left, Zambia's national bird and emblem, and a scene of agricultural workers at center representing the nation's farming economy. The Zambian coat of arms with motto 'One Zambia, One Nation' appears below the denomination.",
    "historical_notes": "This 50 Kwacha note belongs to the second Kwacha series issued by the Bank of Zambia following independence. The Zambian Kwacha was introduced in 1968 to replace the Zambian Pound at a rate of 2 Kwacha = 1 Pound. This particular design series featuring Kenneth Kaunda was issued from 1986-1988 during a period of economic difficulty and hyperinflation. The serial number format with prefix '88/G' likely indicates a 1988 printing. The note was printed by Thomas De La Rue, the British security printing company that produced notes for many Commonwealth nations. This first Kwacha (ZMK) was eventually replaced in 2013 by a redenominated new Kwacha (ZMW) at a rate of 1,000 old to 1 new due to accumulated inflation.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": "88/G098806",
    "serial_prefix": "88/G",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "XF",
    "condition_notes": "Note appears well-centered with good color and detail, minor handling evident",

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

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 1.0,
      "signatures": 0.4,
      "printer": 1.0,
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      "dimensions_mm": 0.9,
      "watermark": 0.95,
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      "back_description": 0.95,
      "historical_notes": 0.9,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.92,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Zambia", "currency": "ZMK", "denomination": "50 Kwacha", "series_year": null, "series_name": null, "series_range": "1986-1988", "issue_year": null, "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "2013", "predecessor_currency": "Zambian Pound", "successor_currency": "Zambian Kwacha (ZMW)", "issuer": "Bank of Zambia", "issuer_native": null, "signatures": "Governor: signature visible but name illegible", "printer": "Thomas De La Rue and Company Limited", "engraver": null, "material": "paper", "dimensions_mm": "145x72", "watermark": "African Fish Eagle head in clear field at right", "security_features": "watermark,intaglio,microprint", "color_palette": "#8b4789,#d2b48c,#4a4a4a", "portrait_subject": "Kenneth Kaunda", "reverse_subject": "Mulungushi Hall", "themes": "statesman,architecture,wildlife,independence", "commemorative": false, "commemorative_occasion": null, "pick_number": "28a", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Mulungushi Hall in Lusaka, the national convention center of Zambia completed in 1965, which hosted the independence celebrations and has been the venue for major political and cultural events. The building is shown in its modernist architectural style with distinctive red tower and horizontal wings. At left is a statue depicting a freedom fighter raising broken chains aloft, symbolizing Zambia's liberation from colonial rule.", "back_description": "Kenneth Kaunda (1924-2021), first President of Zambia from independence in 1964 to 1991, a founding father of the nation who led the United National Independence Party (UNIP) and the struggle against British colonial rule. The note also features the African Fish Eagle at left, Zambia's national bird and emblem, and a scene of agricultural workers at center representing the nation's farming economy. The Zambian coat of arms with motto 'One Zambia, One Nation' appears below the denomination.", "historical_notes": "This 50 Kwacha note belongs to the second Kwacha series issued by the Bank of Zambia following independence. The Zambian Kwacha was introduced in 1968 to replace the Zambian Pound at a rate of 2 Kwacha = 1 Pound. This particular design series featuring Kenneth Kaunda was issued from 1986-1988 during a period of economic difficulty and hyperinflation. The serial number format with prefix '88/G' likely indicates a 1988 printing. The note was printed by Thomas De La Rue, the British security printing company that produced notes for many Commonwealth nations. This first Kwacha (ZMK) was eventually replaced in 2013 by a redenominated new Kwacha (ZMW) at a rate of 1,000 old to 1 new due to accumulated inflation.", "language_script": "Latin", "languages": "en", "serial_number": "88/G098806", "serial_prefix": "88/G", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "XF", "condition_notes": "Note appears well-centered with good color and detail, minor handling evident", "estimated_value_low": 3, "estimated_value_high": 8, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.4, "printer": 1.0, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.95, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.9, "serial_number": 1.0, "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": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.4, "printer": 1.0, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.95, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.9, "serial_number": 1.0, "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 07:47:22
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zambia",
    "currency": "ZMK",
    "denomination": "10 Kwacha",
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    "series_range": "1989–1991",
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    "legal_status": "demonetized",
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    "issuer": "Bank of Zambia",
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    "pick_number": "31",
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    "front_description": "Education scene showing a mother and child studying together at a desk, with a modernist institutional building (likely a school or university) in the background. The building features clean lines and large windows characteristic of post-independence educational infrastructure development in Zambia. This imagery reflects the nation's emphasis on education and human capital development following independence in 1964.",
    "back_description": "Kenneth Kaunda (1924–2021), first President of Zambia who led the country from independence in 1964 until 1991, serving as a key figure in African liberation movements and non-aligned politics during the Cold War. The reverse also features a Fish Eagle (Haliaeetus vocifer), Zambia's national bird, prominent along the Zambezi River and national symbol. The central vignette shows agricultural workers tending to crops with an aircraft overhead, symbolizing the modernization of Zambian agriculture and transport infrastructure.",
    "historical_notes": "This note belongs to the 1989–1991 series issued by the Bank of Zambia during the final years of Kenneth Kaunda's presidency. The Zambian Kwacha (ZMK) was introduced in 1968 replacing the Zambian Pound at 2 Kwacha = 1 Pound. The serial number format '120/D 388396' indicates this is from a 1989–1991 printing run, with the prefix numerals and letter denoting the print series. This series was in circulation during a period of significant economic challenges including inflation and structural adjustment. The note was eventually demonetized when Zambia redenominated its currency in 2013, replacing 1000 old Kwacha (ZMK) with 1 new Kwacha (ZMW). The Fish Eagle watermark and modernist design elements are characteristic of this era of Zambian currency. Printed by Thomas De La Rue as indicated by the imprint at the bottom of the front.",
    "language_script": "Latin",
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    "serial_number": "120/D 388396",
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    "condition_grade": "AU",
    "condition_notes": "Note appears to have minimal circulation with crisp paper and strong colors, minor handling evident",

    "estimated_value_low": 2,
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    "field_confidence": {
      "country": 1.0,
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      "historical_notes": 0.9,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.9,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Zambia", "currency": "ZMK", "denomination": "10 Kwacha", "series_year": null, "series_name": null, "series_range": "1989\u20131991", "issue_year": null, "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "2013-01-01", "predecessor_currency": "Zambian Pound", "successor_currency": "Zambian Kwacha (redenominated ZMW)", "issuer": "Bank of Zambia", "issuer_native": null, "signatures": "Governor: signature visible but name illegible", "printer": "Thomas De La Rue & Company Limited", "engraver": null, "material": "paper", "dimensions_mm": "145x72", "watermark": "Fish Eagle head in clear field at right", "security_features": "watermark,security_thread,intaglio,microprint", "color_palette": "#8b9467,#d4cdb5,#9b8579", "portrait_subject": null, "reverse_subject": "Kenneth Kaunda", "themes": "statesman,wildlife,education,agriculture,industry", "commemorative": false, "commemorative_occasion": null, "pick_number": "31", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Education scene showing a mother and child studying together at a desk, with a modernist institutional building (likely a school or university) in the background. The building features clean lines and large windows characteristic of post-independence educational infrastructure development in Zambia. This imagery reflects the nation's emphasis on education and human capital development following independence in 1964.", "back_description": "Kenneth Kaunda (1924\u20132021), first President of Zambia who led the country from independence in 1964 until 1991, serving as a key figure in African liberation movements and non-aligned politics during the Cold War. The reverse also features a Fish Eagle (Haliaeetus vocifer), Zambia's national bird, prominent along the Zambezi River and national symbol. The central vignette shows agricultural workers tending to crops with an aircraft overhead, symbolizing the modernization of Zambian agriculture and transport infrastructure.", "historical_notes": "This note belongs to the 1989\u20131991 series issued by the Bank of Zambia during the final years of Kenneth Kaunda's presidency. The Zambian Kwacha (ZMK) was introduced in 1968 replacing the Zambian Pound at 2 Kwacha = 1 Pound. The serial number format '120/D 388396' indicates this is from a 1989\u20131991 printing run, with the prefix numerals and letter denoting the print series. This series was in circulation during a period of significant economic challenges including inflation and structural adjustment. The note was eventually demonetized when Zambia redenominated its currency in 2013, replacing 1000 old Kwacha (ZMK) with 1 new Kwacha (ZMW). The Fish Eagle watermark and modernist design elements are characteristic of this era of Zambian currency. Printed by Thomas De La Rue as indicated by the imprint at the bottom of the front.", "language_script": "Latin", "languages": "en", "serial_number": "120/D 388396", "serial_prefix": "120/D", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "AU", "condition_notes": "Note appears to have minimal circulation with crisp paper and strong colors, minor handling evident", "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": 0.7, "issue_year": 0.7, "issuer": 1.0, "signatures": 0.6, "printer": 1.0, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.95, "portrait_subject": 0.0, "reverse_subject": 0.95, "pick_number": 0.95, "serial_number": 1.0, "front_description": 0.9, "back_description": 0.95, "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": 0.5, "series_year": 0.7, "issue_year": 0.7, "issuer": 1.0, "signatures": 0.6, "printer": 1.0, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.95, "portrait_subject": 0.0, "reverse_subject": 0.95, "pick_number": 0.95, "serial_number": 1.0, "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 07:47:25
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zambia",
    "currency": "ZMK",
    "denomination": "50 Kwacha",
    "series_year": null,
    "series_name": null,
    "series_range": "1986-1988",
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Zambian Pound",
    "successor_currency": "Zambian Kwacha (redenominated, ZMW)",

    "issuer": "Bank of Zambia",
    "issuer_native": null,
    "signatures": "Governor: signature visible but name not clearly legible",
    "printer": "François-Charles Oberthur Fiduciaire",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "145x72",
    "watermark": "Fish eagle head in clear field at left",
    "security_features": "watermark,security_thread,microprint,intaglio",
    "color_palette": "#9b6b9e,#e8d4b8,#a8c8a0",

    "portrait_subject": "Kenneth Kaunda",
    "reverse_subject": "Victoria Falls",
    "themes": "statesman,wildlife,architecture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "28",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Victoria Falls (Mosi-oa-Tunya, 'The Smoke that Thunders'), one of the world's largest waterfalls on the Zambezi River at the Zambia-Zimbabwe border. A major natural landmark and UNESCO World Heritage Site, the falls span over 1,700 meters wide and drop up to 108 meters. The note features an African buffalo at left and a statue representing Zambian independence and national unity at right. The inscription 'BANK OF ZAMBIA' appears prominently, with denomination '100 KWACHA' and 'ONE HUNDRED KWACHA' in English.",

    "back_description": "Kenneth Kaunda (1924-2021), first President of independent Zambia serving from 1964 to 1991, a founding father of the nation and prominent leader in the Pan-African movement and anti-colonial struggle. Portrait at right. At left, an African fish eagle (Haliaeetus vocifer), Zambia's national bird, depicted in its characteristic pose. Center shows the national coat of arms with two figures holding tools flanking a shield, representing workers and national development. The note features denomination 'FIFTY KWACHA' with governor signature and serial number.",

    "historical_notes": "This 50 Kwacha note belongs to the first Kwacha series issued by the Bank of Zambia after the currency was introduced in 1968, replacing the Zambian Pound at par. The series from the mid-to-late 1980s featured Kenneth Kaunda, who led Zambia from independence in 1964 through the period of one-party rule until 1991. This note was printed by François-Charles Oberthur Fiduciaire, a major French security printer. The Kwacha underwent significant devaluation during the 1980s due to economic challenges from falling copper prices and structural adjustment. This denomination was demonetized during the 1991-1992 currency reforms when Zambia transitioned to multi-party democracy. The design emphasizes Zambian national symbols: Victoria Falls (a major tourist attraction and natural wonder shared with Zimbabwe), the fish eagle (national bird), and imagery celebrating independence and development. Pick catalogue reference P-28.",

    "language_script": "Latin",
    "languages": "en",

    "serial_number": "E/5 331915",
    "serial_prefix": "E/5",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note appears to have light circulation wear, minor handling marks, good color retention, no significant tears or stains 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": 0.5,
      "series_year": 0.7,
      "issue_year": 0.7,
      "issuer": 1.0,
      "signatures": 0.4,
      "printer": 1.0,
      "material": 0.95,
      "dimensions_mm": 0.9,
      "watermark": 0.95,
      "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": 0.75
    },
    "overall_confidence": 0.9,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Zambia", "currency": "ZMK", "denomination": "50 Kwacha", "series_year": null, "series_name": null, "series_range": "1986-1988", "issue_year": null, "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Zambian Pound", "successor_currency": "Zambian Kwacha (redenominated, ZMW)", "issuer": "Bank of Zambia", "issuer_native": null, "signatures": "Governor: signature visible but name not clearly legible", "printer": "Fran\u00e7ois-Charles Oberthur Fiduciaire", "engraver": null, "material": "paper", "dimensions_mm": "145x72", "watermark": "Fish eagle head in clear field at left", "security_features": "watermark,security_thread,microprint,intaglio", "color_palette": "#9b6b9e,#e8d4b8,#a8c8a0", "portrait_subject": "Kenneth Kaunda", "reverse_subject": "Victoria Falls", "themes": "statesman,wildlife,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": "28", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Victoria Falls (Mosi-oa-Tunya, 'The Smoke that Thunders'), one of the world's largest waterfalls on the Zambezi River at the Zambia-Zimbabwe border. A major natural landmark and UNESCO World Heritage Site, the falls span over 1,700 meters wide and drop up to 108 meters. The note features an African buffalo at left and a statue representing Zambian independence and national unity at right. The inscription 'BANK OF ZAMBIA' appears prominently, with denomination '100 KWACHA' and 'ONE HUNDRED KWACHA' in English.", "back_description": "Kenneth Kaunda (1924-2021), first President of independent Zambia serving from 1964 to 1991, a founding father of the nation and prominent leader in the Pan-African movement and anti-colonial struggle. Portrait at right. At left, an African fish eagle (Haliaeetus vocifer), Zambia's national bird, depicted in its characteristic pose. Center shows the national coat of arms with two figures holding tools flanking a shield, representing workers and national development. The note features denomination 'FIFTY KWACHA' with governor signature and serial number.", "historical_notes": "This 50 Kwacha note belongs to the first Kwacha series issued by the Bank of Zambia after the currency was introduced in 1968, replacing the Zambian Pound at par. The series from the mid-to-late 1980s featured Kenneth Kaunda, who led Zambia from independence in 1964 through the period of one-party rule until 1991. This note was printed by Fran\u00e7ois-Charles Oberthur Fiduciaire, a major French security printer. The Kwacha underwent significant devaluation during the 1980s due to economic challenges from falling copper prices and structural adjustment. This denomination was demonetized during the 1991-1992 currency reforms when Zambia transitioned to multi-party democracy. The design emphasizes Zambian national symbols: Victoria Falls (a major tourist attraction and natural wonder shared with Zimbabwe), the fish eagle (national bird), and imagery celebrating independence and development. Pick catalogue reference P-28.", "language_script": "Latin", "languages": "en", "serial_number": "E/5 331915", "serial_prefix": "E/5", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note appears to have light circulation wear, minor handling marks, good color retention, no significant tears or stains 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": 0.5, "series_year": 0.7, "issue_year": 0.7, "issuer": 1.0, "signatures": 0.4, "printer": 1.0, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.95, "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": 0.75}, "overall_confidence": 0.9, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.5, "series_year": 0.7, "issue_year": 0.7, "issuer": 1.0, "signatures": 0.4, "printer": 1.0, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.95, "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": 0.75}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:47:44
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zambia",
    "currency": "ZMW",
    "denomination": "10 Kwacha (front) / 100 Dollars (back)",
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": "2023",
    "era": "1990_present",
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "Bank of Zambia",
    "issuer_native": null,
    "signatures": "Governor: [signature present but name illegible]",
    "printer": "Thomas De La Rue & Company, Limited",
    "engraver": null,
    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": "microprint,intaglio,latent_image",
    "color_palette": "#d4e5d5,#8b7355,#1a1a1a",
    "portrait_subject": null,
    "reverse_subject": "African buffalo",
    "themes": "wildlife,architecture",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,
    "front_description": "The Bank of Zambia headquarters building in Lusaka, the central bank's modernist multi-story office complex that has served as the institution's seat since the post-independence era. The building represents the country's financial sovereignty and administrative infrastructure. The denomination reads '10 TEN KWACHA' with 'BANK OF ZAMBIA' inscribed at top. Printer attribution visible at bottom: 'THOMAS DE LA RUE & COMPANY, LIMITED.'",
    "back_description": "African buffalo (Syncerus caffer), one of the 'Big Five' game animals of Africa and a species native to Zambian wildlife reserves and national parks including Kafue and South Luangwa. The buffalo appears with a calf in natural grassland habitat. The back carries the text 'RESERVE BANK OF ZIMBABWE' (repeated microprint security pattern), 'I PROMISE TO PAY THE BEARER ON DEMAND ONE HUNDRED DOLLARS FOR THE RESERVE BANK OF ZIMBABWE', with 'HARARE 2023' at bottom left, and denomination '100' at corners.",
    "historical_notes": "This note presents a significant mismatch: the front is clearly a Zambian 10 Kwacha note issued by the Bank of Zambia (with Thomas De La Rue attribution), while the back is from a Zimbabwean 100 Dollar note issued by the Reserve Bank of Zimbabwe dated 2023 (Harare). These are two different banknotes from two different countries and currency systems photographed together. Zambia uses the Kwacha (ZMW) redenominated in 2013, while Zimbabwe reintroduced the Zimbabwe Dollar (ZWL/ZiG) in 2019-2023 after years of using foreign currencies following hyperinflation. The pairing is physically impossible as a single legitimate banknote. The Zambian front follows traditional Bank of Zambia design showing their headquarters; the Zimbabwean back follows their 2019-2023 series wildlife theme featuring indigenous animals.",
    "language_script": "Latin",
    "languages": "en",
    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,
    "condition_grade": "unknown",
    "condition_notes": "Images show two different banknotes from different countries presented as front and back",
    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,
    "field_confidence": {
      "country": 0.4,
      "currency": 0.4,
      "denomination": 0.95,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.9,
      "issuer": 0.95,
      "signatures": 0.3,
      "printer": 0.95,
      "material": 0.85,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.95,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.9,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.0
    },
    "overall_confidence": 0.35,
    "flags": ["mismatched_pair", "foreign_object"]
  }
  ```

parsed_json:
  {"country": "Zambia", "currency": "ZMW", "denomination": "10 Kwacha (front) / 100 Dollars (back)", "series_year": null, "series_name": null, "series_range": null, "issue_year": "2023", "era": "1990_present", "legal_status": null, "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "Bank of Zambia", "issuer_native": null, "signatures": "Governor: [signature present but name illegible]", "printer": "Thomas De La Rue & Company, Limited", "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": "microprint,intaglio,latent_image", "color_palette": "#d4e5d5,#8b7355,#1a1a1a", "portrait_subject": null, "reverse_subject": "African buffalo", "themes": "wildlife,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "The Bank of Zambia headquarters building in Lusaka, the central bank's modernist multi-story office complex that has served as the institution's seat since the post-independence era. The building represents the country's financial sovereignty and administrative infrastructure. The denomination reads '10 TEN KWACHA' with 'BANK OF ZAMBIA' inscribed at top. Printer attribution visible at bottom: 'THOMAS DE LA RUE & COMPANY, LIMITED.'", "back_description": "African buffalo (Syncerus caffer), one of the 'Big Five' game animals of Africa and a species native to Zambian wildlife reserves and national parks including Kafue and South Luangwa. The buffalo appears with a calf in natural grassland habitat. The back carries the text 'RESERVE BANK OF ZIMBABWE' (repeated microprint security pattern), 'I PROMISE TO PAY THE BEARER ON DEMAND ONE HUNDRED DOLLARS FOR THE RESERVE BANK OF ZIMBABWE', with 'HARARE 2023' at bottom left, and denomination '100' at corners.", "historical_notes": "This note presents a significant mismatch: the front is clearly a Zambian 10 Kwacha note issued by the Bank of Zambia (with Thomas De La Rue attribution), while the back is from a Zimbabwean 100 Dollar note issued by the Reserve Bank of Zimbabwe dated 2023 (Harare). These are two different banknotes from two different countries and currency systems photographed together. Zambia uses the Kwacha (ZMW) redenominated in 2013, while Zimbabwe reintroduced the Zimbabwe Dollar (ZWL/ZiG) in 2019-2023 after years of using foreign currencies following hyperinflation. The pairing is physically impossible as a single legitimate banknote. The Zambian front follows traditional Bank of Zambia design showing their headquarters; the Zimbabwean back follows their 2019-2023 series wildlife theme featuring indigenous animals.", "language_script": "Latin", "languages": "en", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "unknown", "condition_notes": "Images show two different banknotes from different countries presented as front and back", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.4, "currency": 0.4, "denomination": 0.95, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.9, "issuer": 0.95, "signatures": 0.3, "printer": 0.95, "material": 0.85, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.95, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.9, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.0}, "overall_confidence": 0.35, "flags": ["mismatched_pair", "foreign_object"]}

field_confidence:
  {"country": 0.4, "currency": 0.4, "denomination": 0.95, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.9, "issuer": 0.95, "signatures": 0.3, "printer": 0.95, "material": 0.85, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.95, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.9, "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 07:47:44
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 image labeled as 'front' shows a Zambian 10 Kwacha note featuring the Bank of Zambia headquarters building in Lusaka, with the Zambian national flower (Black-eyed Susan/Thunbergia alata) at left and traditional fishing baskets at right. The note is printed by Thomas De La Rue & Company, Limited as indicated at bottom.",
    "back_description": "The image labeled as 'back' shows a Zimbabwean 100 Dollars note dated Harare 2023, featuring the Balancing Rocks (Chiremba Rocks) near Harare, a natural geological formation that has become a national symbol of Zimbabwe representing the delicate balance needed in the country. The Zimbabwe Bird emblem and star from the national flag appear at upper right.",
    "historical_notes": "CRITICAL ERROR: These two images are NOT the front and back of the same banknote. The 'front' image is a Zambian 10 Kwacha note from the 1980s-1990s series (likely P-26 or similar), while the 'back' image is a Zimbabwean 100 Dollars note from the 2023 ZiG currency series issued by the Reserve Bank of Zimbabwe. These are completely different countries, currencies, and time periods. The Zambian note features architecture and was printed by De La Rue, while the Zimbabwe note shows the iconic Balancing Rocks and was issued during Governor John Mushayavanhu's tenure as part of Zimbabwe's ongoing currency reforms.",
    "language_script": "Latin",
    "languages": "en",

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

    "condition_grade": "unknown",
    "condition_notes": "Cannot assess as images show two different banknotes",

    "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": 0.15,
    "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 image labeled as 'front' shows a Zambian 10 Kwacha note featuring the Bank of Zambia headquarters building in Lusaka, with the Zambian national flower (Black-eyed Susan/Thunbergia alata) at left and traditional fishing baskets at right. The note is printed by Thomas De La Rue & Company, Limited as indicated at bottom.", "back_description": "The image labeled as 'back' shows a Zimbabwean 100 Dollars note dated Harare 2023, featuring the Balancing Rocks (Chiremba Rocks) near Harare, a natural geological formation that has become a national symbol of Zimbabwe representing the delicate balance needed in the country. The Zimbabwe Bird emblem and star from the national flag appear at upper right.", "historical_notes": "CRITICAL ERROR: These two images are NOT the front and back of the same banknote. The 'front' image is a Zambian 10 Kwacha note from the 1980s-1990s series (likely P-26 or similar), while the 'back' image is a Zimbabwean 100 Dollars note from the 2023 ZiG currency series issued by the Reserve Bank of Zimbabwe. These are completely different countries, currencies, and time periods. The Zambian note features architecture and was printed by De La Rue, while the Zimbabwe note shows the iconic Balancing Rocks and was issued during Governor John Mushayavanhu's tenure as part of Zimbabwe's ongoing currency reforms.", "language_script": "Latin", "languages": "en", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "unknown", "condition_notes": "Cannot assess as images show two different banknotes", "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": 0.15, "flags": ["mismatched_pair"]}

field_confidence:
[cell repeats an earlier one in this file: 414 characters]


provider: openai
model: gpt-4o
status: ok
created_at: 2026-05-10 07:47:44
prompt_version: v3-year-reasoning
raw_response:
  {
    "country": "Zambia",
    "currency": "Zambian Kwacha",
    "denomination": "10 Kwacha",
    "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": "Bank of Zambia",
    "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 Bank of Zambia building, representing the central financial institution of Zambia managing the nation's currency and economy.",
    "back_description": "Balancing rocks, a common motif representing natural geological features found in Zimbabwe, typically associated with the Matopos Hills.",
    "historical_notes": "The Zambian Kwacha was introduced in 1968, replacing the Zambian pound. Banknotes issued by the Bank of Zambia often feature national symbols and landmarks.",
    "language_script": "Latin",
    "languages": "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": 1.0, 
      "currency": 1.0, 
      "denomination": 1.0,
      "series_name": 0.5, 
      "series_year": 0.5, 
      "issue_year": 0.5,
      "issuer": 1.0, 
      "signatures": 0.5, 
      "printer": 1.0,
      "material": 1.0, 
      "dimensions_mm": 0.5, 
      "watermark": 0.5,
      "portrait_subject": 0.5, 
      "reverse_subject": 0.5,
      "pick_number": 0.5, 
      "serial_number": 0.5,
      "front_description": 1.0, 
      "back_description": 0.5,
      "historical_notes": 0.8, 
      "condition_grade": 0.5
    },
    "overall_confidence": 0.8,
    "flags": [
      "mismatched_pair"
    ]
  }

parsed_json:
  {"country": "Zambia", "currency": "Zambian Kwacha", "denomination": "10 Kwacha", "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": "Bank of Zambia", "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 Bank of Zambia building, representing the central financial institution of Zambia managing the nation's currency and economy.", "back_description": "Balancing rocks, a common motif representing natural geological features found in Zimbabwe, typically associated with the Matopos Hills.", "historical_notes": "The Zambian Kwacha was introduced in 1968, replacing the Zambian pound. Banknotes issued by the Bank of Zambia often feature national symbols and landmarks.", "language_script": "Latin", "languages": "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": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.5, "series_year": 0.5, "issue_year": 0.5, "issuer": 1.0, "signatures": 0.5, "printer": 1.0, "material": 1.0, "dimensions_mm": 0.5, "watermark": 0.5, "portrait_subject": 0.5, "reverse_subject": 0.5, "pick_number": 0.5, "serial_number": 0.5, "front_description": 1.0, "back_description": 0.5, "historical_notes": 0.8, "condition_grade": 0.5}, "overall_confidence": 0.8, "flags": ["mismatched_pair"]}

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


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:48:09
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWD",
    "denomination": "100 Dollars / 10,000 Dollars",
    "series_year": "2006",
    "series_name": "Bearer Cheque Series",
    "series_range": "2006–2008",
    "issue_year": "2006",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "2009-04-12",
    "predecessor_currency": "Third Zimbabwe Dollar",
    "successor_currency": "Fourth Zimbabwe Dollar (ZWL)",

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: Dr. G Gono",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "145x72",
    "watermark": "Zimbabwe Bird in clear field at right on front",
    "security_features": "microprint,see_through_register,latent_image",
    "color_palette": "#d4a76a,#8b7355,#f5e6d3",

    "portrait_subject": null,
    "reverse_subject": "Bearer Cheque design",
    "themes": "wildlife,architecture,commemorative",
    "commemorative": false,
    "commemorative_occasion": null,

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

    "front_description": "Baobab tree (Adansonia digitata) at center with the iconic Zimbabwe Bird sculpture in the background. The baobab is one of Africa's most distinctive trees, living for thousands of years and serving as a symbol of African landscape and resilience. The Zimbabwe Bird is the national emblem, derived from soapstone sculptures found at the Great Zimbabwe ruins dating to the 11th–15th centuries. This note is printed with '100 ONE HUNDRED DOLLARS' denomination and serial number AM2587705.",

    "back_description": "Bearer cheque format issued during Zimbabwe's hyperinflation crisis. The back displays 'TEN THOUSAND DOLLARS' (10,000) with expiry date '31st July 2007' and issue date '1st August 2006'. Signed by Dr. Gideon Gono, Governor of the Reserve Bank of Zimbabwe (2003–2013), who oversaw the central bank during the worst hyperinflation in recorded history. The bearer cheque format allowed the Reserve Bank to issue temporary-validity notes to cope with rapidly escalating prices; these notes had to be revalidated or replaced frequently. Serial number AH4094929.",

    "historical_notes": "This is a mismatched pair showing two different denominations from Zimbabwe's hyperinflation era. The front shows a 100 Dollar note (Third Zimbabwe Dollar, 2006 series, P-42, serial AM2587705) while the back shows a 10,000 Dollar bearer cheque (2006 bearer cheque series, P-46, serial AH4094929). Both were issued during the catastrophic hyperinflation of 2006–2008 under Governor Gideon Gono. The bearer cheque system was introduced as an emergency measure allowing the Reserve Bank to issue high-denomination notes with expiry dates to keep pace with hyperinflation that eventually reached 89.7 sextillion percent year-on-year in November 2008. The Third Zimbabwe Dollar (ZWD) was redenominated on August 1, 2008 (dropping 10 zeros) to become the Fourth Zimbabwe Dollar. All ZWD notes were demonetized on April 12, 2009 when Zimbabwe abandoned its currency and adopted foreign currencies including USD and ZAR. The 100 Dollar note features the baobab tree and Zimbabwe Bird, recurring motifs throughout Zimbabwe's banknote history representing the nation's natural heritage and ancient civilization. These notes are now common collectibles documenting one of history's most extreme cases of currency collapse.",

    "language_script": "Latin",
    "languages": "en",

    "serial_number": "AM2587705",
    "serial_prefix": "AM",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "F",
    "condition_notes": "Circulated note with visible creases, handling marks, and slight soiling. The back image shows staining and wear consistent with circulation during hyperinflation when notes changed hands rapidly.",

    "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": 0.95,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.85,
      "watermark": 0.9,
      "portrait_subject": 1.0,
      "reverse_subject": 0.9,
      "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": 0.75,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWD", "denomination": "100 Dollars / 10,000 Dollars", "series_year": "2006", "series_name": "Bearer Cheque Series", "series_range": "2006\u20132008", "issue_year": "2006", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "2009-04-12", "predecessor_currency": "Third Zimbabwe Dollar", "successor_currency": "Fourth Zimbabwe Dollar (ZWL)", "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: Dr. G Gono", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "145x72", "watermark": "Zimbabwe Bird in clear field at right on front", "security_features": "microprint,see_through_register,latent_image", "color_palette": "#d4a76a,#8b7355,#f5e6d3", "portrait_subject": null, "reverse_subject": "Bearer Cheque design", "themes": "wildlife,architecture,commemorative", "commemorative": false, "commemorative_occasion": null, "pick_number": "42", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Baobab tree (Adansonia digitata) at center with the iconic Zimbabwe Bird sculpture in the background. The baobab is one of Africa's most distinctive trees, living for thousands of years and serving as a symbol of African landscape and resilience. The Zimbabwe Bird is the national emblem, derived from soapstone sculptures found at the Great Zimbabwe ruins dating to the 11th\u201315th centuries. This note is printed with '100 ONE HUNDRED DOLLARS' denomination and serial number AM2587705.", "back_description": "Bearer cheque format issued during Zimbabwe's hyperinflation crisis. The back displays 'TEN THOUSAND DOLLARS' (10,000) with expiry date '31st July 2007' and issue date '1st August 2006'. Signed by Dr. Gideon Gono, Governor of the Reserve Bank of Zimbabwe (2003\u20132013), who oversaw the central bank during the worst hyperinflation in recorded history. The bearer cheque format allowed the Reserve Bank to issue temporary-validity notes to cope with rapidly escalating prices; these notes had to be revalidated or replaced frequently. Serial number AH4094929.", "historical_notes": "This is a mismatched pair showing two different denominations from Zimbabwe's hyperinflation era. The front shows a 100 Dollar note (Third Zimbabwe Dollar, 2006 series, P-42, serial AM2587705) while the back shows a 10,000 Dollar bearer cheque (2006 bearer cheque series, P-46, serial AH4094929). Both were issued during the catastrophic hyperinflation of 2006\u20132008 under Governor Gideon Gono. The bearer cheque system was introduced as an emergency measure allowing the Reserve Bank to issue high-denomination notes with expiry dates to keep pace with hyperinflation that eventually reached 89.7 sextillion percent year-on-year in November 2008. The Third Zimbabwe Dollar (ZWD) was redenominated on August 1, 2008 (dropping 10 zeros) to become the Fourth Zimbabwe Dollar. All ZWD notes were demonetized on April 12, 2009 when Zimbabwe abandoned its currency and adopted foreign currencies including USD and ZAR. The 100 Dollar note features the baobab tree and Zimbabwe Bird, recurring motifs throughout Zimbabwe's banknote history representing the nation's natural heritage and ancient civilization. These notes are now common collectibles documenting one of history's most extreme cases of currency collapse.", "language_script": "Latin", "languages": "en", "serial_number": "AM2587705", "serial_prefix": "AM", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Circulated note with visible creases, handling marks, and slight soiling. The back image shows staining and wear consistent with circulation during hyperinflation when notes changed hands rapidly.", "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": 0.95, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 0.9, "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": 0.75, "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": 0.95, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 0.9, "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-opus-4-5
status: ok
created_at: 2026-05-10 07:48:09
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWD",
    "denomination": null,
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,

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

    "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": "Great Zimbabwe Ruins featuring the iconic Conical Tower within the Great Enclosure, a UNESCO World Heritage Site and the largest ancient structure south of the Sahara. The ruins represent the capital of the Kingdom of Zimbabwe during the late Iron Age (11th–15th century). A large baobab tree (Adansonia digitata) is prominently featured, symbolizing the African landscape. The Zimbabwe Bird, the national emblem derived from soapstone sculptures found at Great Zimbabwe, appears in the upper left corner.",

    "back_description": "This appears to be a Zimbabwe Bearer Cheque for 10,000 dollars, issued 1st August 2006 with expiry date 31st July 2007. Signed by Dr. G. Gono (Gideon Gono), Governor of the Reserve Bank of Zimbabwe from 2003-2013. Bearer cheques were emergency currency instruments issued during Zimbabwe's hyperinflation crisis. Features the Reserve Bank of Zimbabwe seal with the Zimbabwe Bird.",

    "historical_notes": "MISMATCHED PAIR: The front image shows a 100 Dollar note from the 2020 series introduced after Zimbabwe's currency reforms, featuring Great Zimbabwe ruins. The back image shows a completely different note - a 10,000 Dollar Bearer Cheque from 2006, issued during Zimbabwe's hyperinflation period under Governor Gideon Gono. Bearer cheques were quasi-currency instruments with expiration dates, issued to circumvent the need for formal currency printing during the economic crisis. These are definitively two different notes from different eras of Zimbabwe's monetary history.",

    "language_script": "Latin",
    "languages": "en",

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

    "condition_grade": "unknown",
    "condition_notes": "Mismatched front and back images - cannot assess condition of a single note",

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

    "field_confidence": {
      "country": 1.0,
      "currency": 0.7,
      "denomination": 0.0,
      "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": 0.0,
      "reverse_subject": 0.0,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.85,
      "back_description": 0.9,
      "historical_notes": 0.95,
      "condition_grade": 0.0
    },
    "overall_confidence": 0.25,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWD", "denomination": null, "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": "1990_present", "legal_status": "demonetized", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": null, "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": "Great Zimbabwe Ruins featuring the iconic Conical Tower within the Great Enclosure, a UNESCO World Heritage Site and the largest ancient structure south of the Sahara. The ruins represent the capital of the Kingdom of Zimbabwe during the late Iron Age (11th\u201315th century). A large baobab tree (Adansonia digitata) is prominently featured, symbolizing the African landscape. The Zimbabwe Bird, the national emblem derived from soapstone sculptures found at Great Zimbabwe, appears in the upper left corner.", "back_description": "This appears to be a Zimbabwe Bearer Cheque for 10,000 dollars, issued 1st August 2006 with expiry date 31st July 2007. Signed by Dr. G. Gono (Gideon Gono), Governor of the Reserve Bank of Zimbabwe from 2003-2013. Bearer cheques were emergency currency instruments issued during Zimbabwe's hyperinflation crisis. Features the Reserve Bank of Zimbabwe seal with the Zimbabwe Bird.", "historical_notes": "MISMATCHED PAIR: The front image shows a 100 Dollar note from the 2020 series introduced after Zimbabwe's currency reforms, featuring Great Zimbabwe ruins. The back image shows a completely different note - a 10,000 Dollar Bearer Cheque from 2006, issued during Zimbabwe's hyperinflation period under Governor Gideon Gono. Bearer cheques were quasi-currency instruments with expiration dates, issued to circumvent the need for formal currency printing during the economic crisis. These are definitively two different notes from different eras of Zimbabwe's monetary history.", "language_script": "Latin", "languages": "en", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "unknown", "condition_notes": "Mismatched front and back images - cannot assess condition of a single note", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 1.0, "currency": 0.7, "denomination": 0.0, "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": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.0}, "overall_confidence": 0.25, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 1.0, "currency": 0.7, "denomination": 0.0, "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": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.0}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:49:06
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWD",
    "denomination": "5 Dollars",
    "series_year": "1997",
    "series_name": "1997 Bearer Cheque Series",
    "series_range": "1997-2001",
    "issue_year": "1997",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "2009-04-12",
    "predecessor_currency": "Zimbabwean Dollar (First)",
    "successor_currency": "Zimbabwean Dollar (Fourth redenomination)",

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: signature visible but name not clearly legible",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "145x70",
    "watermark": null,
    "security_features": "microprint,intaglio,latent_image",
    "color_palette": "#d4a574,#8b5a8e,#a0522d",

    "portrait_subject": null,
    "reverse_subject": "Balancing Rocks formation (likely Epworth or Matopos)",
    "themes": "architecture,wildlife",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "6",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "The Great Zimbabwe ruins, a medieval city built by the Shona people between the 11th and 15th centuries. The structure shown represents part of the UNESCO World Heritage Site that gives Zimbabwe its name, symbolizing the nation's pre-colonial heritage and independence. The ruins feature distinctive dry-stone walls and were the capital of the Kingdom of Zimbabwe during the country's Late Iron Age.",
    "back_description": "Balancing Rocks (Chiremba Balancing Rocks), one of Zimbabwe's most iconic natural landmarks featuring precariously balanced granite boulders formed through millions of years of erosion. These rock formations appear throughout Zimbabwe and are featured on the national emblem. The back also depicts a sable antelope at right and the Zimbabwe Bird emblem, both national symbols. The text 'HARARE 1997' indicates the year and place of issue.",
    "historical_notes": "This note belongs to the 1997 Bearer Cheque series issued by the Reserve Bank of Zimbabwe, replacing the earlier Zimbabwe Dollar notes. Despite the denomination being labeled as 'FIVE DOLLARS' on the back, the front shows '10 000', indicating this is a revalidation or overprint note from Zimbabwe's hyperinflation period. The back retains the original 5-dollar design while the front has been overprinted with 10,000. This practice became common during Zimbabwe's economic crisis (late 1990s-2008) when the Reserve Bank revalued existing notes to keep pace with hyperinflation. The note was printed during the governorship period in the late 1990s. The currency was eventually demonetized in April 2009 after hyperinflation rendered it worthless. Serial number BV3683015 uses the BV prefix typical of this series.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": "BV3683015",
    "serial_prefix": "BV",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "F",
    "condition_notes": "Note shows significant circulation wear, aging, and discoloration typical of hyperinflation-era Zimbabwean currency. Multiple creases and handling marks visible.",

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

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 0.95,
      "series_name": 0.9,
      "series_year": 0.95,
      "issue_year": 0.95,
      "issuer": 1.0,
      "signatures": 0.5,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.85,
      "watermark": 0.3,
      "portrait_subject": 1.0,
      "reverse_subject": 0.9,
      "pick_number": 0.85,
      "serial_number": 1.0,
      "front_description": 0.9,
      "back_description": 0.9,
      "historical_notes": 0.85,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.87,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWD", "denomination": "5 Dollars", "series_year": "1997", "series_name": "1997 Bearer Cheque Series", "series_range": "1997-2001", "issue_year": "1997", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "2009-04-12", "predecessor_currency": "Zimbabwean Dollar (First)", "successor_currency": "Zimbabwean Dollar (Fourth redenomination)", "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: signature visible but name not clearly legible", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "145x70", "watermark": null, "security_features": "microprint,intaglio,latent_image", "color_palette": "#d4a574,#8b5a8e,#a0522d", "portrait_subject": null, "reverse_subject": "Balancing Rocks formation (likely Epworth or Matopos)", "themes": "architecture,wildlife", "commemorative": false, "commemorative_occasion": null, "pick_number": "6", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The Great Zimbabwe ruins, a medieval city built by the Shona people between the 11th and 15th centuries. The structure shown represents part of the UNESCO World Heritage Site that gives Zimbabwe its name, symbolizing the nation's pre-colonial heritage and independence. The ruins feature distinctive dry-stone walls and were the capital of the Kingdom of Zimbabwe during the country's Late Iron Age.", "back_description": "Balancing Rocks (Chiremba Balancing Rocks), one of Zimbabwe's most iconic natural landmarks featuring precariously balanced granite boulders formed through millions of years of erosion. These rock formations appear throughout Zimbabwe and are featured on the national emblem. The back also depicts a sable antelope at right and the Zimbabwe Bird emblem, both national symbols. The text 'HARARE 1997' indicates the year and place of issue.", "historical_notes": "This note belongs to the 1997 Bearer Cheque series issued by the Reserve Bank of Zimbabwe, replacing the earlier Zimbabwe Dollar notes. Despite the denomination being labeled as 'FIVE DOLLARS' on the back, the front shows '10 000', indicating this is a revalidation or overprint note from Zimbabwe's hyperinflation period. The back retains the original 5-dollar design while the front has been overprinted with 10,000. This practice became common during Zimbabwe's economic crisis (late 1990s-2008) when the Reserve Bank revalued existing notes to keep pace with hyperinflation. The note was printed during the governorship period in the late 1990s. The currency was eventually demonetized in April 2009 after hyperinflation rendered it worthless. Serial number BV3683015 uses the BV prefix typical of this series.", "language_script": "Latin", "languages": "en", "serial_number": "BV3683015", "serial_prefix": "BV", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Note shows significant circulation wear, aging, and discoloration typical of hyperinflation-era Zimbabwean currency. Multiple creases and handling marks visible.", "estimated_value_low": 2, "estimated_value_high": 8, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 0.95, "series_name": 0.9, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.5, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.3, "portrait_subject": 1.0, "reverse_subject": 0.9, "pick_number": 0.85, "serial_number": 1.0, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.8}, "overall_confidence": 0.87, "flags": ["mismatched_pair"]}

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


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:49:06
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWD",
    "denomination": "5",
    "series_year": "1997",
    "series_name": "Third Dollar Series",
    "series_range": "1994–2003",
    "issue_year": "1997",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "2009",
    "predecessor_currency": "Second Zimbabwe Dollar",
    "successor_currency": "Fourth Zimbabwe Dollar",

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: Leonard Tsumba",
    "printer": "Fidelity Printers and Refiners",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "148x74",
    "watermark": "Zimbabwe Bird",
    "security_features": "thread,microprint,intaglio",
    "color_palette": "#c17f59,#e8b4b8,#4a3c6e",

    "portrait_subject": null,
    "reverse_subject": "Great Zimbabwe ruins",
    "themes": "architecture,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-5b",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "The Chiremba Balancing Rocks near Epworth, Harare, a natural granite formation that has become a national symbol of Zimbabwe representing the delicate balance between man and nature. These distinctive rock formations appear on Zimbabwe's currency as an emblem of the nation's natural heritage and the need for balanced development.",
    "back_description": "The Great Zimbabwe ruins, a UNESCO World Heritage Site and the largest ancient stone structure in sub-Saharan Africa south of the Nile Valley. Built between the 11th and 15th centuries by the ancestors of the Shona people, it served as the capital of the Kingdom of Zimbabwe. The iconic conical tower and curved walls shown here gave the modern nation its name, derived from 'dzimba dza mabwe' meaning 'houses of stone' in Shona.",
    "historical_notes": "This 5 Dollar note from 1997 is part of Zimbabwe's third dollar series issued during a period of relative economic stability before the hyperinflation crisis. The series maintained traditional imagery emphasizing national heritage. Zimbabwe experienced severe hyperinflation from 2007-2009, leading to multiple currency redenominations and eventually the abandonment of the Zimbabwe dollar in favor of foreign currencies. The first image appears to be a different note (10,000 bearer cheque from 2008) incorrectly paired with this 5 dollar note.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": "BV3633015",
    "serial_prefix": "BV",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "AU",
    "condition_notes": "Light handling marks, appears uncirculated with minor wear",

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

    "field_confidence": {
      "country": 1.0,
      "currency": 0.95,
      "denomination": 0.95,
      "series_name": 0.8,
      "series_year": 0.95,
      "issue_year": 0.95,
      "issuer": 1.0,
      "signatures": 0.7,
      "printer": 0.75,
      "material": 0.95,
      "dimensions_mm": 0.8,
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      "reverse_subject": 0.95,
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      "front_description": 0.9,
      "back_description": 0.9,
      "historical_notes": 0.85,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.55,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWD", "denomination": "5", "series_year": "1997", "series_name": "Third Dollar Series", "series_range": "1994\u20132003", "issue_year": "1997", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "2009", "predecessor_currency": "Second Zimbabwe Dollar", "successor_currency": "Fourth Zimbabwe Dollar", "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: Leonard Tsumba", "printer": "Fidelity Printers and Refiners", "engraver": null, "material": "paper", "dimensions_mm": "148x74", "watermark": "Zimbabwe Bird", "security_features": "thread,microprint,intaglio", "color_palette": "#c17f59,#e8b4b8,#4a3c6e", "portrait_subject": null, "reverse_subject": "Great Zimbabwe ruins", "themes": "architecture,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-5b", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The Chiremba Balancing Rocks near Epworth, Harare, a natural granite formation that has become a national symbol of Zimbabwe representing the delicate balance between man and nature. These distinctive rock formations appear on Zimbabwe's currency as an emblem of the nation's natural heritage and the need for balanced development.", "back_description": "The Great Zimbabwe ruins, a UNESCO World Heritage Site and the largest ancient stone structure in sub-Saharan Africa south of the Nile Valley. Built between the 11th and 15th centuries by the ancestors of the Shona people, it served as the capital of the Kingdom of Zimbabwe. The iconic conical tower and curved walls shown here gave the modern nation its name, derived from 'dzimba dza mabwe' meaning 'houses of stone' in Shona.", "historical_notes": "This 5 Dollar note from 1997 is part of Zimbabwe's third dollar series issued during a period of relative economic stability before the hyperinflation crisis. The series maintained traditional imagery emphasizing national heritage. Zimbabwe experienced severe hyperinflation from 2007-2009, leading to multiple currency redenominations and eventually the abandonment of the Zimbabwe dollar in favor of foreign currencies. The first image appears to be a different note (10,000 bearer cheque from 2008) incorrectly paired with this 5 dollar note.", "language_script": "Latin", "languages": "en", "serial_number": "BV3633015", "serial_prefix": "BV", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "AU", "condition_notes": "Light handling marks, appears uncirculated with minor wear", "estimated_value_low": 2, "estimated_value_high": 8, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 0.95, "denomination": 0.95, "series_name": 0.8, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.7, "printer": 0.75, "material": 0.95, "dimensions_mm": 0.8, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.7, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.8}, "overall_confidence": 0.55, "flags": ["mismatched_pair"]}

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


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:49:07
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWL",
    "denomination": "100",
    "series_year": "2020",
    "series_name": "Fourth Dollar series",
    "series_range": "2019–present",
    "issue_year": "2020",
    "era": "1990_present",
    "legal_status": "in_circulation",
    "legal_status_date": null,
    "predecessor_currency": "US Dollar (multi-currency system)",
    "successor_currency": null,

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: (signature visible but name illegible)",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "150x70",
    "watermark": "Zimbabwe Bird in clear field at left",
    "security_features": "thread,microprint,latent_image,raised_print",
    "color_palette": "#d4b896,#8b7355,#f5e6d3",

    "portrait_subject": null,
    "reverse_subject": "Balancing Rocks",
    "themes": "indigenous_culture,wildlife,architecture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "New-100",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "A baobab tree (Adansonia digitata), one of Africa's most iconic trees, known for its massive trunk and longevity of over 1,000 years. The baobab is culturally significant throughout southern Africa as a symbol of life, resilience, and community gathering places. Three Zimbabwe Birds appear at left, the national symbol derived from soapstone sculptures found at Great Zimbabwe ruins, representing the country's heritage and sovereignty.",
    "back_description": "Balancing Rocks (also known as the Chiremba Balancing Rocks), a natural granite formation located near Harare and Epworth that has become one of Zimbabwe's most recognizable geological landmarks. These precarious rock formations appear on Zimbabwe's coat of arms and symbolize the delicate balance of development. Three Zimbabwe Birds appear at right as decorative elements echoing the national emblem.",
    "historical_notes": "This note belongs to the Fourth Zimbabwe Dollar (ZWL) series, reintroduced in June 2019 after a decade-long suspension of the local currency (2009–2019) during which Zimbabwe used a multi-currency system dominated by US dollars. The return of the Zimbabwe dollar followed a period of bond notes and RTGS dollars. The 2020 series represents the Reserve Bank's attempt to restore monetary sovereignty amid ongoing economic challenges. The date 'HARARE 2020' appears printed on the back, indicating this specific printing. Zimbabwe has experienced multiple currency reforms due to hyperinflation episodes, with previous dollar iterations abandoned in 2009. The current series features natural landmarks and indigenous symbols rather than political figures, reflecting a shift in national iconography.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": "AK4904399",
    "serial_prefix": "AK",
    "serial_suffix": null,
    "replacement_note": false,
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    "condition_grade": "UNC",
    "condition_notes": null,

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

    "field_confidence": {
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    },
    "overall_confidence": 0.9,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWL", "denomination": "100", "series_year": "2020", "series_name": "Fourth Dollar series", "series_range": "2019\u2013present", "issue_year": "2020", "era": "1990_present", "legal_status": "in_circulation", "legal_status_date": null, "predecessor_currency": "US Dollar (multi-currency system)", "successor_currency": null, "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: (signature visible but name illegible)", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "150x70", "watermark": "Zimbabwe Bird in clear field at left", "security_features": "thread,microprint,latent_image,raised_print", "color_palette": "#d4b896,#8b7355,#f5e6d3", "portrait_subject": null, "reverse_subject": "Balancing Rocks", "themes": "indigenous_culture,wildlife,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": "New-100", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "A baobab tree (Adansonia digitata), one of Africa's most iconic trees, known for its massive trunk and longevity of over 1,000 years. The baobab is culturally significant throughout southern Africa as a symbol of life, resilience, and community gathering places. Three Zimbabwe Birds appear at left, the national symbol derived from soapstone sculptures found at Great Zimbabwe ruins, representing the country's heritage and sovereignty.", "back_description": "Balancing Rocks (also known as the Chiremba Balancing Rocks), a natural granite formation located near Harare and Epworth that has become one of Zimbabwe's most recognizable geological landmarks. These precarious rock formations appear on Zimbabwe's coat of arms and symbolize the delicate balance of development. Three Zimbabwe Birds appear at right as decorative elements echoing the national emblem.", "historical_notes": "This note belongs to the Fourth Zimbabwe Dollar (ZWL) series, reintroduced in June 2019 after a decade-long suspension of the local currency (2009\u20132019) during which Zimbabwe used a multi-currency system dominated by US dollars. The return of the Zimbabwe dollar followed a period of bond notes and RTGS dollars. The 2020 series represents the Reserve Bank's attempt to restore monetary sovereignty amid ongoing economic challenges. The date 'HARARE 2020' appears printed on the back, indicating this specific printing. Zimbabwe has experienced multiple currency reforms due to hyperinflation episodes, with previous dollar iterations abandoned in 2009. The current series features natural landmarks and indigenous symbols rather than political figures, reflecting a shift in national iconography.", "language_script": "Latin", "languages": "en", "serial_number": "AK4904399", "serial_prefix": "AK", "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": 0.9, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.4, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.7, "serial_number": 1.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.95}, "overall_confidence": 0.9, "flags": ["mismatched_pair"]}

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


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:49:07
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWL",
    "denomination": "100",
    "series_year": "2020",
    "series_name": "Zimbabwe Dollar 2019-2020 Series",
    "series_range": "2019–present",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "in_circulation",
    "legal_status_date": null,
    "predecessor_currency": "RTGS Dollar",
    "successor_currency": null,

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: John Mangudya",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "148x73",
    "watermark": "Zimbabwe Bird",
    "security_features": "hologram,microprint,see_through_register,thread",
    "color_palette": "#d4a574,#8b7355,#c9956c",

    "portrait_subject": null,
    "reverse_subject": "Chiremba Balancing Rocks",
    "themes": "architecture,indigenous_culture",
    "commemorative": false,
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    "pick_number": "P-106",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Great Zimbabwe ruins, the medieval stone city that served as the capital of the Kingdom of Zimbabwe during the Late Iron Age (11th–15th century). The ruins are a UNESCO World Heritage Site and the most significant archaeological site in Sub-Saharan Africa south of the Sahara. A baobab tree, iconic to the African landscape, appears alongside the ancient dry-stone walls and conical tower of the Great Enclosure. The Zimbabwe Bird, national emblem derived from soapstone sculptures found at Great Zimbabwe, appears in the upper left corner.",

    "back_description": "The Chiremba Balancing Rocks (also known as Epworth Balancing Rocks), a natural geological formation located in Epworth, about 14 km southeast of Harare. These granite formations have become a symbol of Zimbabwe, representing the delicate balance needed in environmental conservation and appearing on Zimbabwean currency since independence. The formation depicts naturally balanced boulders that have become iconic national symbols.",

    "historical_notes": "This note belongs to the Zimbabwe Dollar series reintroduced in 2019 after the abandonment of the multi-currency system. The 2020 series followed the 2019 introduction of the new Zimbabwe Dollar (ZWL), replacing the RTGS Dollar and bond notes. Zimbabwe has experienced multiple currency reforms due to hyperinflation, with the original Zimbabwe Dollar abandoned in 2009. The imagery emphasizes national heritage and natural landmarks rather than political figures, a deliberate choice following the country's turbulent political history. Note: The images provided show MISMATCHED notes - the front shows 100 Dollars while the back image shows a 50 Dollar note dated Harare 2020.",

    "language_script": "Latin",
    "languages": "en",

    "serial_number": "AK4904399",
    "serial_prefix": "AK",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

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

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

    "field_confidence": {
      "country": 0.99,
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      "historical_notes": 0.85,
      "condition_grade": 0.90
    },
    "overall_confidence": 0.65,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWL", "denomination": "100", "series_year": "2020", "series_name": "Zimbabwe Dollar 2019-2020 Series", "series_range": "2019\u2013present", "issue_year": null, "era": "1990_present", "legal_status": "in_circulation", "legal_status_date": null, "predecessor_currency": "RTGS Dollar", "successor_currency": null, "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: John Mangudya", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "148x73", "watermark": "Zimbabwe Bird", "security_features": "hologram,microprint,see_through_register,thread", "color_palette": "#d4a574,#8b7355,#c9956c", "portrait_subject": null, "reverse_subject": "Chiremba Balancing Rocks", "themes": "architecture,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-106", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Great Zimbabwe ruins, the medieval stone city that served as the capital of the Kingdom of Zimbabwe during the Late Iron Age (11th\u201315th century). The ruins are a UNESCO World Heritage Site and the most significant archaeological site in Sub-Saharan Africa south of the Sahara. A baobab tree, iconic to the African landscape, appears alongside the ancient dry-stone walls and conical tower of the Great Enclosure. The Zimbabwe Bird, national emblem derived from soapstone sculptures found at Great Zimbabwe, appears in the upper left corner.", "back_description": "The Chiremba Balancing Rocks (also known as Epworth Balancing Rocks), a natural geological formation located in Epworth, about 14 km southeast of Harare. These granite formations have become a symbol of Zimbabwe, representing the delicate balance needed in environmental conservation and appearing on Zimbabwean currency since independence. The formation depicts naturally balanced boulders that have become iconic national symbols.", "historical_notes": "This note belongs to the Zimbabwe Dollar series reintroduced in 2019 after the abandonment of the multi-currency system. The 2020 series followed the 2019 introduction of the new Zimbabwe Dollar (ZWL), replacing the RTGS Dollar and bond notes. Zimbabwe has experienced multiple currency reforms due to hyperinflation, with the original Zimbabwe Dollar abandoned in 2009. The imagery emphasizes national heritage and natural landmarks rather than political figures, a deliberate choice following the country's turbulent political history. Note: The images provided show MISMATCHED notes - the front shows 100 Dollars while the back image shows a 50 Dollar note dated Harare 2020.", "language_script": "Latin", "languages": "en", "serial_number": "AK4904399", "serial_prefix": "AK", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Note appears crisp and uncirculated with sharp corners and no visible wear", "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 0.99, "currency": 0.95, "denomination": 0.99, "series_name": 0.85, "series_year": 0.95, "issue_year": 0.0, "issuer": 0.99, "signatures": 0.8, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.7, "watermark": 0.75, "portrait_subject": 0.0, "reverse_subject": 0.9, "pick_number": 0.7, "serial_number": 0.99, "front_description": 0.9, "back_description": 0.85, "historical_notes": 0.85, "condition_grade": 0.9}, "overall_confidence": 0.65, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.99, "currency": 0.95, "denomination": 0.99, "series_name": 0.85, "series_year": 0.95, "issue_year": 0.0, "issuer": 0.99, "signatures": 0.8, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.7, "watermark": 0.75, "portrait_subject": 0.0, "reverse_subject": 0.9, "pick_number": 0.7, "serial_number": 0.99, "front_description": 0.9, "back_description": 0.85, "historical_notes": 0.85, "condition_grade": 0.9}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:49:14
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWD",
    "denomination": "5 Dollars",
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "2009",
    "predecessor_currency": "Rhodesian Dollar",
    "successor_currency": "Zimbabwe Dollar (fourth)",

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": "intaglio,microprint",
    "color_palette": "#8b4513,#d2b48c,#6b8e23",

    "portrait_subject": null,
    "reverse_subject": "Jan van Riebeeck",
    "themes": "architecture,wildlife,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,

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

    "front_description": "The Chiremba Balancing Rocks (also known as the Epworth Balancing Rocks), a distinctive geological formation of balanced granite boulders located near Harare, Zimbabwe. These rocks are one of Zimbabwe's most iconic natural landmarks and appear on multiple denominations of Zimbabwean currency as a national symbol. The front features stylized indigenous animals including elephants in the decorative border, with traditional geometric patterns in green, brown, and multicolor.",
    "back_description": "Jan van Riebeeck (1619–1677), Dutch colonial administrator who founded the Cape Colony settlement in 1652, establishing the first permanent European settlement in South Africa. The back depicts a historical sailing ship scene representing early colonial maritime activity at the Cape of Good Hope. This note is a mismatched pair: the back is from a South African Reserve Bank 1 Pound note dated 8.5.59 (May 8, 1959), serial number B/o 282762, issued in Pretoria. The bilingual text 'SOUTH AFRICAN RESERVE BANK / SUID-AFRIKAANSE RESERWEBANK' and promise to pay in English and Afrikaans confirms this is a South African note, NOT the reverse of the Zimbabwean 5 Dollar front.",
    "historical_notes": "CRITICAL MISMATCH: These images show two different banknotes from two different countries and eras. The front is a Reserve Bank of Zimbabwe 5 Dollar note featuring the Chiremba Balancing Rocks, likely from the 1990s or early 2000s Zimbabwe Dollar series (first or second dollar, before hyperinflation). The back is a South African Reserve Bank 1 Pound note from 1959, part of the pre-decimal South African pound series issued before the transition to the Rand in 1961. The South African pound was the currency of the Union of South Africa from 1910–1961. This appears to be either an error in image pairing or the two sides of different notes were photographed. Zimbabwe (formerly Southern Rhodesia) and South Africa are distinct countries with separate currencies and issuing authorities. The Zimbabwean Dollar underwent multiple series and redenominations, ultimately collapsing during hyperinflation (2007–2009) and being abandoned in 2009 in favor of multi-currency use.",
    "language_script": "Latin",
    "languages": "en,af",

    "serial_number": "B/o 282762",
    "serial_prefix": "B/o",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note shows typical circulation wear with maintained detail.",

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

    "field_confidence": {
      "country": 0.95,
      "currency": 0.85,
      "denomination": 0.95,
      "series_name": 0.3,
      "series_year": 0.2,
      "issue_year": 0.2,
      "issuer": 0.98,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.9,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.95,
      "pick_number": 0.0,
      "serial_number": 0.95,
      "front_description": 0.9,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.75
    },
    "overall_confidence": 0.45,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWD", "denomination": "5 Dollars", "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "2009", "predecessor_currency": "Rhodesian Dollar", "successor_currency": "Zimbabwe Dollar (fourth)", "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": "intaglio,microprint", "color_palette": "#8b4513,#d2b48c,#6b8e23", "portrait_subject": null, "reverse_subject": "Jan van Riebeeck", "themes": "architecture,wildlife,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "The Chiremba Balancing Rocks (also known as the Epworth Balancing Rocks), a distinctive geological formation of balanced granite boulders located near Harare, Zimbabwe. These rocks are one of Zimbabwe's most iconic natural landmarks and appear on multiple denominations of Zimbabwean currency as a national symbol. The front features stylized indigenous animals including elephants in the decorative border, with traditional geometric patterns in green, brown, and multicolor.", "back_description": "Jan van Riebeeck (1619\u20131677), Dutch colonial administrator who founded the Cape Colony settlement in 1652, establishing the first permanent European settlement in South Africa. The back depicts a historical sailing ship scene representing early colonial maritime activity at the Cape of Good Hope. This note is a mismatched pair: the back is from a South African Reserve Bank 1 Pound note dated 8.5.59 (May 8, 1959), serial number B/o 282762, issued in Pretoria. The bilingual text 'SOUTH AFRICAN RESERVE BANK / SUID-AFRIKAANSE RESERWEBANK' and promise to pay in English and Afrikaans confirms this is a South African note, NOT the reverse of the Zimbabwean 5 Dollar front.", "historical_notes": "CRITICAL MISMATCH: These images show two different banknotes from two different countries and eras. The front is a Reserve Bank of Zimbabwe 5 Dollar note featuring the Chiremba Balancing Rocks, likely from the 1990s or early 2000s Zimbabwe Dollar series (first or second dollar, before hyperinflation). The back is a South African Reserve Bank 1 Pound note from 1959, part of the pre-decimal South African pound series issued before the transition to the Rand in 1961. The South African pound was the currency of the Union of South Africa from 1910\u20131961. This appears to be either an error in image pairing or the two sides of different notes were photographed. Zimbabwe (formerly Southern Rhodesia) and South Africa are distinct countries with separate currencies and issuing authorities. The Zimbabwean Dollar underwent multiple series and redenominations, ultimately collapsing during hyperinflation (2007\u20132009) and being abandoned in 2009 in favor of multi-currency use.", "language_script": "Latin", "languages": "en,af", "serial_number": "B/o 282762", "serial_prefix": "B/o", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows typical circulation wear with maintained detail.", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.95, "currency": 0.85, "denomination": 0.95, "series_name": 0.3, "series_year": 0.2, "issue_year": 0.2, "issuer": 0.98, "signatures": 0.0, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.95, "pick_number": 0.0, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.75}, "overall_confidence": 0.45, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.95, "currency": 0.85, "denomination": 0.95, "series_name": 0.3, "series_year": 0.2, "issue_year": 0.2, "issuer": 0.98, "signatures": 0.0, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.95, "pick_number": 0.0, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.75}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:49:14
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": "paper",
    "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 Zimbabwe 5 Dollar note featuring the Chiremba Balancing Rocks near Epworth, Harare. These iconic granite formations are a national symbol of Zimbabwe, representing the delicate balance needed in governance and society. Two kudus (Greater Kudu antelopes) appear at lower left, native wildlife of Zimbabwe. A colorful geometric pattern incorporating traditional Zimbabwean design motifs runs along the bottom border.",
    "back_description": "This image shows a South African 1 Pound note featuring Jan van Riebeeck (1619-1677), the Dutch colonial administrator who established the first permanent European settlement at the Cape of Good Hope in 1652. The portrait is based on a 17th-century painting. Table Mountain appears in the background, and Dutch East India Company ships are depicted at right, representing the maritime commerce that drove Dutch colonization of the Cape.",
    "historical_notes": "CRITICAL: These two images are NOT from the same banknote. The front image is a Zimbabwe 5 Dollars from the third dollar series (1994-2007), likely P-5b or similar, issued by the Reserve Bank of Zimbabwe. The back image is a South African 1 Pound from 1959, issued by the South African Reserve Bank, dated Pretoria 8.5.59, likely P-93e. The South African pound series featuring Jan van Riebeeck was issued from 1948-1959 before South Africa decimalized to the Rand in 1961. These notes are from completely different countries, currencies, and eras.",
    "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": "Cannot assess condition as images are mismatched pair 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": 0.9,
      "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": 0.9,
      "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": "paper", "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 Zimbabwe 5 Dollar note featuring the Chiremba Balancing Rocks near Epworth, Harare. These iconic granite formations are a national symbol of Zimbabwe, representing the delicate balance needed in governance and society. Two kudus (Greater Kudu antelopes) appear at lower left, native wildlife of Zimbabwe. A colorful geometric pattern incorporating traditional Zimbabwean design motifs runs along the bottom border.", "back_description": "This image shows a South African 1 Pound note featuring Jan van Riebeeck (1619-1677), the Dutch colonial administrator who established the first permanent European settlement at the Cape of Good Hope in 1652. The portrait is based on a 17th-century painting. Table Mountain appears in the background, and Dutch East India Company ships are depicted at right, representing the maritime commerce that drove Dutch colonization of the Cape.", "historical_notes": "CRITICAL: These two images are NOT from the same banknote. The front image is a Zimbabwe 5 Dollars from the third dollar series (1994-2007), likely P-5b or similar, issued by the Reserve Bank of Zimbabwe. The back image is a South African 1 Pound from 1959, issued by the South African Reserve Bank, dated Pretoria 8.5.59, likely P-93e. The South African pound series featuring Jan van Riebeeck was issued from 1948-1959 before South Africa decimalized to the Rand in 1961. These notes are from completely different countries, currencies, and eras.", "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": "Cannot assess condition as images are mismatched pair 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": 0.9, "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": 0.9, "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": 0.9, "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": 0.9, "historical_notes": 0.95, "condition_grade": 0.0}


provider: openai
model: gpt-4o
status: ok
created_at: 2026-05-10 07:49:14
prompt_version: v3-year-reasoning
raw_response:
  {
    "country": "Zimbabwe",
    "currency": "Zimbabwean Dollar",
    "denomination": "5 Dollars",
    "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": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,
    "material": "paper",
    "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": "Depiction of Matopo Hills, a major tourist and cultural site in Zimbabwe known for its unique rock formations and as a UNESCO World Heritage Site.",
    "back_description": "Portrait of Jan van Riebeeck (1619–1677), a Dutch navigator and colonial administrator who founded Cape Town. The reverse also shows a depiction of Table Mountain and sailing ships.",
    "historical_notes": "The depicted note combines elements from different series likely due to mismatched images. Zimbabwean notes with such designs were issued from 1980 onwards, featuring local cultural and geographical landmarks.",
    "language_script": null,
    "languages": "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": 1.0,
      "currency": 0.9,
      "denomination": 0.85,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 0.95,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.8,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.9,
      "reverse_subject": 0.9,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.8,
      "condition_grade": 0.0
    },
    "overall_confidence": 0.85,
    "flags": [
      "mismatched_pair"
    ]
  }

parsed_json:
  {"country": "Zimbabwe", "currency": "Zimbabwean Dollar", "denomination": "5 Dollars", "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": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": "paper", "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": "Depiction of Matopo Hills, a major tourist and cultural site in Zimbabwe known for its unique rock formations and as a UNESCO World Heritage Site.", "back_description": "Portrait of Jan van Riebeeck (1619\u20131677), a Dutch navigator and colonial administrator who founded Cape Town. The reverse also shows a depiction of Table Mountain and sailing ships.", "historical_notes": "The depicted note combines elements from different series likely due to mismatched images. Zimbabwean notes with such designs were issued from 1980 onwards, featuring local cultural and geographical landmarks.", "language_script": null, "languages": "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": 1.0, "currency": 0.9, "denomination": 0.85, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.95, "signatures": 0.0, "printer": 0.0, "material": 0.8, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.9, "reverse_subject": 0.9, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.8, "condition_grade": 0.0}, "overall_confidence": 0.85, "flags": ["mismatched_pair"]}

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


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:49:24
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": null,
    "denomination": "1 Pound / 100 Dollars",
    "series_year": "2020",
    "series_name": null,
    "series_range": null,
    "issue_year": "2020",
    "era": "1990_present",
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: (signature visible but name illegible)",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": "hologram,microprint,intaglio",
    "color_palette": "#f5deb3,#8b7355,#4a4a4a",

    "portrait_subject": null,
    "reverse_subject": "Balancing Rocks",
    "themes": "wildlife,architecture",
    "commemorative": false,
    "commemorative_occasion": null,

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

    "front_description": "The front features the heraldic Zimbabwe Bird (Hungwe) holding a fasces or bundle of reeds — a stylized representation of the national symbol derived from soapstone bird sculptures found at Great Zimbabwe. The denomination appears as both 'ONE POUND' and 'EEN POND' (Afrikaans), with elaborate guilloche patterns framing the central motif. This note represents an unusual dual-denomination design combining historical British colonial pound nomenclature with contemporary Zimbabwean dollar valuation.",

    "back_description": "Balancing Rocks formation, one of Zimbabwe's most iconic geological features found in Matobo National Park near Bulawayo. These naturally balanced granite rock formations have become a symbol of Zimbabwe and appear on the country's currency and coat of arms. The denomination is expressed as '100 DOLLARS' with 'RESERVE BANK OF ZIMBABWE' as the issuer. The date 'HARARE 2020' appears at bottom left, indicating the year and place of issue.",

    "historical_notes": "This is a highly unusual and problematic note. The front displays '1 POUND' (in English and Afrikaans 'EEN POND'), suggesting either a colonial-era Rhodesian design or a fantasy/commemorative piece, while the back clearly shows '100 DOLLARS' issued by the Reserve Bank of Zimbabwe dated 2020. The two sides appear fundamentally incompatible: the pound sterling has not been Zimbabwe's currency since Rhodesia became Zimbabwe in 1980, and no legitimate 2020 Reserve Bank of Zimbabwe issue would reference pounds. This mismatch strongly suggests either: (1) a novelty/fantasy note combining historical and modern elements, (2) a commemorative piece not intended for circulation, or (3) mismatched images of two different notes. Zimbabwe reintroduced the Zimbabwean dollar in 2019 after years of using foreign currencies following hyperinflation (2008–2009) that demonetized previous dollar series. Legitimate 2020 Reserve Bank of Zimbabwe notes exist, but none carry pound denominations. Without additional authentication, this piece cannot be catalogued as a standard circulating issue.",

    "language_script": "Latin",
    "languages": "en,af",

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

    "condition_grade": "F",
    "condition_notes": "Note shows significant circulation wear with center fold, creasing, and general handling marks. Paper discoloration evident.",

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

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

parsed_json:
  {"country": null, "currency": null, "denomination": "1 Pound / 100 Dollars", "series_year": "2020", "series_name": null, "series_range": null, "issue_year": "2020", "era": "1990_present", "legal_status": null, "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: (signature visible but name illegible)", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": "hologram,microprint,intaglio", "color_palette": "#f5deb3,#8b7355,#4a4a4a", "portrait_subject": null, "reverse_subject": "Balancing Rocks", "themes": "wildlife,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "The front features the heraldic Zimbabwe Bird (Hungwe) holding a fasces or bundle of reeds \u2014 a stylized representation of the national symbol derived from soapstone bird sculptures found at Great Zimbabwe. The denomination appears as both 'ONE POUND' and 'EEN POND' (Afrikaans), with elaborate guilloche patterns framing the central motif. This note represents an unusual dual-denomination design combining historical British colonial pound nomenclature with contemporary Zimbabwean dollar valuation.", "back_description": "Balancing Rocks formation, one of Zimbabwe's most iconic geological features found in Matobo National Park near Bulawayo. These naturally balanced granite rock formations have become a symbol of Zimbabwe and appear on the country's currency and coat of arms. The denomination is expressed as '100 DOLLARS' with 'RESERVE BANK OF ZIMBABWE' as the issuer. The date 'HARARE 2020' appears at bottom left, indicating the year and place of issue.", "historical_notes": "This is a highly unusual and problematic note. The front displays '1 POUND' (in English and Afrikaans 'EEN POND'), suggesting either a colonial-era Rhodesian design or a fantasy/commemorative piece, while the back clearly shows '100 DOLLARS' issued by the Reserve Bank of Zimbabwe dated 2020. The two sides appear fundamentally incompatible: the pound sterling has not been Zimbabwe's currency since Rhodesia became Zimbabwe in 1980, and no legitimate 2020 Reserve Bank of Zimbabwe issue would reference pounds. This mismatch strongly suggests either: (1) a novelty/fantasy note combining historical and modern elements, (2) a commemorative piece not intended for circulation, or (3) mismatched images of two different notes. Zimbabwe reintroduced the Zimbabwean dollar in 2019 after years of using foreign currencies following hyperinflation (2008\u20132009) that demonetized previous dollar series. Legitimate 2020 Reserve Bank of Zimbabwe notes exist, but none carry pound denominations. Without additional authentication, this piece cannot be catalogued as a standard circulating issue.", "language_script": "Latin", "languages": "en,af", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Note shows significant circulation wear with center fold, creasing, and general handling marks. Paper discoloration evident.", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.4, "currency": 0.3, "denomination": 0.95, "series_name": 0.0, "series_year": 0.9, "issue_year": 0.9, "issuer": 0.95, "signatures": 0.5, "printer": 0.0, "material": 0.85, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.9, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.7, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.8}, "overall_confidence": 0.45, "flags": ["mismatched_pair", "unidentified_subject"]}

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


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:49:24
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": "South African Reserve Bank One Pound note featuring a rampant lion standing on a ribbon bearing the Latin motto 'EX UNITATE VIRES' (From Unity, Strength), which was South Africa's national motto from 1910 to 2000. The bilingual text shows 'SUID-AFRIKAANSE RESERWEBANK' in Afrikaans and 'SOUTH AFRICAN RESERVE BANK' in English, reflecting the country's official dual-language policy. The denomination appears as 'EEN POND' (Afrikaans) and 'ONE POUND' (English).",

    "back_description": "Zimbabwe 100 Dollars note from the 2020 series featuring the iconic Balancing Rocks (Chiremba Rocks) at Epworth near Harare. These distinctive geological formations, created by millions of years of weathering, have become a national symbol appearing on Zimbabwe's currency since independence. They represent the delicate balance required in economic and political affairs. The note includes the Reserve Bank of Zimbabwe text, holographic security features, and signature of the Governor.",

    "historical_notes": "MISMATCHED PAIR: These images show two completely different banknotes from different countries and eras. The front image is a South African One Pound note from the pre-decimal pound sterling era (South Africa used pounds until 1961 when it decimalized to the Rand). The back image is a Zimbabwe 100 Dollar note dated 2020 from the fourth Zimbabwe dollar series introduced after the 2019 currency reforms. These cannot be catalogued as a single note.",

    "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": "Mismatched pair - cannot assess as single note. Front (SA Pound) appears VF-F grade with visible wear, folds, and aging. Back (Zimbabwe $100) appears UNC condition.",

    "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": 0.92,
      "back_description": 0.90,
      "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": "South African Reserve Bank One Pound note featuring a rampant lion standing on a ribbon bearing the Latin motto 'EX UNITATE VIRES' (From Unity, Strength), which was South Africa's national motto from 1910 to 2000. The bilingual text shows 'SUID-AFRIKAANSE RESERWEBANK' in Afrikaans and 'SOUTH AFRICAN RESERVE BANK' in English, reflecting the country's official dual-language policy. The denomination appears as 'EEN POND' (Afrikaans) and 'ONE POUND' (English).", "back_description": "Zimbabwe 100 Dollars note from the 2020 series featuring the iconic Balancing Rocks (Chiremba Rocks) at Epworth near Harare. These distinctive geological formations, created by millions of years of weathering, have become a national symbol appearing on Zimbabwe's currency since independence. They represent the delicate balance required in economic and political affairs. The note includes the Reserve Bank of Zimbabwe text, holographic security features, and signature of the Governor.", "historical_notes": "MISMATCHED PAIR: These images show two completely different banknotes from different countries and eras. The front image is a South African One Pound note from the pre-decimal pound sterling era (South Africa used pounds until 1961 when it decimalized to the Rand). The back image is a Zimbabwe 100 Dollar note dated 2020 from the fourth Zimbabwe dollar series introduced after the 2019 currency reforms. These cannot be catalogued as a single note.", "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": "Mismatched pair - cannot assess as single note. Front (SA Pound) appears VF-F grade with visible wear, folds, and aging. Back (Zimbabwe $100) appears UNC condition.", "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": 0.92, "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": 0.92, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.0}


provider: openai
model: gpt-4o
status: ok
created_at: 2026-05-10 07:49:24
prompt_version: v3-year-reasoning
raw_response:
  {
    "country": "South Africa",
    "currency": "South African Pound",
    "denomination": "One Pound",
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "withdrawn",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": "South African Rand",
    
    "issuer": "South African Reserve Bank",
    "issuer_native": "Suid-Afrikaanse Reserwebank",
    "signatures": null,
    "printer": null,
    "engraver": null,
    
    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": null,
    "color_palette": null,
    
    "portrait_subject": null,
    "reverse_subject": "Balancing Rocks, Epworth",
    "themes": "wildlife",
    "commemorative": false,
    "commemorative_occasion": null,
    
    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,
    
    "front_description": "A depiction of a lion with a staff and a ribbon with the motto 'EX UNITATE VIRES', representing strength through unity. Issued by the South African Reserve Bank.",
    "back_description": "The Balancing Rocks, a famous geological formation near Epworth, located outside Harare, are symbolic of Zimbabwe.",
    "historical_notes": "The South African Pound was succeeded by the South African Rand in 1961. This note features bilingual inscriptions reflecting the country's linguistic diversity.",
    "language_script": "Latin",
    "languages": "en,af",
    
    "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": "USD",
    
    "field_confidence": {
      "country": 1.0,
      "currency": 0.9,
      "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": 0.0,
      "reverse_subject": 1.0,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.9,
      "back_description": 0.9,
      "historical_notes": 0.7,
      "condition_grade": 0.0
    },
    "overall_confidence": 0.5,
    "flags": ["mismatched_pair"]
  }

parsed_json:
  {"country": "South Africa", "currency": "South African Pound", "denomination": "One Pound", "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": "1946_1989", "legal_status": "withdrawn", "legal_status_date": null, "predecessor_currency": null, "successor_currency": "South African Rand", "issuer": "South African Reserve Bank", "issuer_native": "Suid-Afrikaanse Reserwebank", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": null, "portrait_subject": null, "reverse_subject": "Balancing Rocks, Epworth", "themes": "wildlife", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "A depiction of a lion with a staff and a ribbon with the motto 'EX UNITATE VIRES', representing strength through unity. Issued by the South African Reserve Bank.", "back_description": "The Balancing Rocks, a famous geological formation near Epworth, located outside Harare, are symbolic of Zimbabwe.", "historical_notes": "The South African Pound was succeeded by the South African Rand in 1961. This note features bilingual inscriptions reflecting the country's linguistic diversity.", "language_script": "Latin", "languages": "en,af", "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": "USD", "field_confidence": {"country": 1.0, "currency": 0.9, "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": 0.0, "reverse_subject": 1.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.7, "condition_grade": 0.0}, "overall_confidence": 0.5, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 1.0, "currency": 0.9, "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": 0.0, "reverse_subject": 1.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.7, "condition_grade": 0.0}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:49:49
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWL",
    "denomination": "50",
    "series_year": null,
    "series_name": "Fourth Dollar series",
    "series_range": "2009–2015",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "2015-06-15",
    "predecessor_currency": "Third Zimbabwe Dollar",
    "successor_currency": "Multi-currency system (USD, ZAR, etc.)",
    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,
    "material": "paper",
    "dimensions_mm": "145x70",
    "watermark": "Zimbabwe Bird in clear field at left",
    "security_features": "thread, hologram, microprint, uv, intaglio, optically_variable_ink",
    "color_palette": "#d4a574,#8b4513,#f5deb3",
    "portrait_subject": null,
    "reverse_subject": "Balancing Rocks",
    "themes": "indigenous_culture,wildlife,architecture",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,
    "front_description": "The front shows three traditional carved Shona figures representing Zimbabwean cultural heritage, alongside the Zimbabwe Bird emblem at left. The Shona sculpture tradition, particularly soapstone carvings, became internationally recognized in the 20th century and represents Zimbabwe's rich artistic heritage. The Zimbabwe Bird, taken from medieval ruins at Great Zimbabwe, is the national symbol appearing on the flag and coat of arms.",
    "back_description": "Balancing Rocks formation in Matobo Hills (also spelled Matopos), southeastern Zimbabwe. These natural granite formations are iconic landmarks created by millions of years of erosion and are culturally significant to the indigenous peoples of Zimbabwe. The area was declared a UNESCO World Heritage Site in 2003 and contains some of the world's oldest rock art as well as being the burial site of Cecil Rhodes.",
    "historical_notes": "This note belongs to Zimbabwe's Fourth Dollar series (ZWL), introduced in February 2009 during the final phase of Zimbabwe's hyperinflation crisis. The Fourth Dollar was introduced at a rate of 1 trillion Third Dollars to 1 Fourth Dollar. However, hyperinflation rendered the currency worthless within months, and Zimbabwe officially abandoned its own currency in April 2009, adopting a multi-currency system dominated by the US Dollar and South African Rand. The Fourth Dollar was formally demonetized on June 15, 2015. Despite the denomination mismatch visible in the images (50 on front, 20 on back), both images share the same issuer name and general design characteristics of this Fourth Dollar series.",
    "language_script": "Latin",
    "languages": "en",
    "serial_number": "AG4013766",
    "serial_prefix": "AG",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,
    "condition_grade": "UNC",
    "condition_notes": "Note appears uncirculated with sharp details and no visible handling marks",
    "estimated_value_low": 5,
    "estimated_value_high": 15,
    "value_currency": "USD",
    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 0.5,
      "series_name": 0.9,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.85,
      "watermark": 0.9,
      "portrait_subject": 0.0,
      "reverse_subject": 0.95,
      "pick_number": 0.0,
      "serial_number": 1.0,
      "front_description": 0.85,
      "back_description": 0.9,
      "historical_notes": 0.95,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.5,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWL", "denomination": "50", "series_year": null, "series_name": "Fourth Dollar series", "series_range": "2009\u20132015", "issue_year": null, "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "2015-06-15", "predecessor_currency": "Third Zimbabwe Dollar", "successor_currency": "Multi-currency system (USD, ZAR, etc.)", "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "145x70", "watermark": "Zimbabwe Bird in clear field at left", "security_features": "thread, hologram, microprint, uv, intaglio, optically_variable_ink", "color_palette": "#d4a574,#8b4513,#f5deb3", "portrait_subject": null, "reverse_subject": "Balancing Rocks", "themes": "indigenous_culture,wildlife,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "The front shows three traditional carved Shona figures representing Zimbabwean cultural heritage, alongside the Zimbabwe Bird emblem at left. The Shona sculpture tradition, particularly soapstone carvings, became internationally recognized in the 20th century and represents Zimbabwe's rich artistic heritage. The Zimbabwe Bird, taken from medieval ruins at Great Zimbabwe, is the national symbol appearing on the flag and coat of arms.", "back_description": "Balancing Rocks formation in Matobo Hills (also spelled Matopos), southeastern Zimbabwe. These natural granite formations are iconic landmarks created by millions of years of erosion and are culturally significant to the indigenous peoples of Zimbabwe. The area was declared a UNESCO World Heritage Site in 2003 and contains some of the world's oldest rock art as well as being the burial site of Cecil Rhodes.", "historical_notes": "This note belongs to Zimbabwe's Fourth Dollar series (ZWL), introduced in February 2009 during the final phase of Zimbabwe's hyperinflation crisis. The Fourth Dollar was introduced at a rate of 1 trillion Third Dollars to 1 Fourth Dollar. However, hyperinflation rendered the currency worthless within months, and Zimbabwe officially abandoned its own currency in April 2009, adopting a multi-currency system dominated by the US Dollar and South African Rand. The Fourth Dollar was formally demonetized on June 15, 2015. Despite the denomination mismatch visible in the images (50 on front, 20 on back), both images share the same issuer name and general design characteristics of this Fourth Dollar series.", "language_script": "Latin", "languages": "en", "serial_number": "AG4013766", "serial_prefix": "AG", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Note appears uncirculated with sharp details and no visible handling marks", "estimated_value_low": 5, "estimated_value_high": 15, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 0.5, "series_name": 0.9, "series_year": 0.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 0.0, "reverse_subject": 0.95, "pick_number": 0.0, "serial_number": 1.0, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.85}, "overall_confidence": 0.5, "flags": ["mismatched_pair"]}

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


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:49:49
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWL",
    "denomination": "50",
    "series_year": "2020",
    "series_name": "Fourth Dollar Series",
    "series_range": "2019–present",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "in_circulation",
    "legal_status_date": null,
    "predecessor_currency": "Bond Notes / RTGS Dollar",
    "successor_currency": null,

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: John Mangudya",
    "printer": null,
    "engraver": null,

    "material": "polymer",
    "dimensions_mm": "148x70",
    "watermark": null,
    "security_features": "hologram,microprint,see_through_register,optically_variable_ink",
    "color_palette": "#c4724a,#e8d4b8,#8b4513",

    "portrait_subject": null,
    "reverse_subject": "Chiremba Balancing Rocks",
    "themes": "military,indigenous_culture,architecture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-105",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "The Heroes' Acre monument in Harare, a national shrine dedicated to Zimbabwean liberation fighters who died in the First and Second Chimurenga wars of independence. The monument, designed by North Korean architects and completed in 1981, features bronze statues of armed guerrilla fighters in various poses. A profile portrait of an unnamed young Zimbabwean appears at right, symbolizing the nation's youth and future. The Zimbabwe Bird emblem, derived from soapstone sculptures found at Great Zimbabwe, appears at upper left.",
    "back_description": "The Chiremba Balancing Rocks (also known as Epworth Balancing Rocks) near Harare, a distinctive geological formation of granite boulders naturally balanced atop one another. These rocks are a national symbol of Zimbabwe representing the delicate balance needed in environmental and economic matters, and appear on Zimbabwean banknotes and previously on the former Zimbabwean dollar coins. The formation is protected as a national monument.",
    "historical_notes": "MISMATCHED PAIR: The front shows a 50 Dollar note while the back shows a 20 Dollar note from the same series. Both notes are from Zimbabwe's fourth dollar series introduced in 2019 following the reintroduction of the Zimbabwe dollar after a decade of dollarization. This series was issued during severe hyperinflation, with denominations rapidly escalating. The 2020 date visible on the back indicates the print year. The series features national monuments and symbols emphasizing Zimbabwean heritage and independence.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": "AG4013766",
    "serial_prefix": "AG",
    "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": 1,
    "estimated_value_high": 5,
    "value_currency": "USD",

    "field_confidence": {
      "country": 0.99,
      "currency": 0.95,
      "denomination": 0.95,
      "series_name": 0.85,
      "series_year": 0.90,
      "issue_year": 0.0,
      "issuer": 0.99,
      "signatures": 0.75,
      "printer": 0.0,
      "material": 0.90,
      "dimensions_mm": 0.70,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.95,
      "pick_number": 0.70,
      "serial_number": 0.95,
      "front_description": 0.85,
      "back_description": 0.90,
      "historical_notes": 0.85,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.55,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWL", "denomination": "50", "series_year": "2020", "series_name": "Fourth Dollar Series", "series_range": "2019\u2013present", "issue_year": null, "era": "1990_present", "legal_status": "in_circulation", "legal_status_date": null, "predecessor_currency": "Bond Notes / RTGS Dollar", "successor_currency": null, "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: John Mangudya", "printer": null, "engraver": null, "material": "polymer", "dimensions_mm": "148x70", "watermark": null, "security_features": "hologram,microprint,see_through_register,optically_variable_ink", "color_palette": "#c4724a,#e8d4b8,#8b4513", "portrait_subject": null, "reverse_subject": "Chiremba Balancing Rocks", "themes": "military,indigenous_culture,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-105", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The Heroes' Acre monument in Harare, a national shrine dedicated to Zimbabwean liberation fighters who died in the First and Second Chimurenga wars of independence. The monument, designed by North Korean architects and completed in 1981, features bronze statues of armed guerrilla fighters in various poses. A profile portrait of an unnamed young Zimbabwean appears at right, symbolizing the nation's youth and future. The Zimbabwe Bird emblem, derived from soapstone sculptures found at Great Zimbabwe, appears at upper left.", "back_description": "The Chiremba Balancing Rocks (also known as Epworth Balancing Rocks) near Harare, a distinctive geological formation of granite boulders naturally balanced atop one another. These rocks are a national symbol of Zimbabwe representing the delicate balance needed in environmental and economic matters, and appear on Zimbabwean banknotes and previously on the former Zimbabwean dollar coins. The formation is protected as a national monument.", "historical_notes": "MISMATCHED PAIR: The front shows a 50 Dollar note while the back shows a 20 Dollar note from the same series. Both notes are from Zimbabwe's fourth dollar series introduced in 2019 following the reintroduction of the Zimbabwe dollar after a decade of dollarization. This series was issued during severe hyperinflation, with denominations rapidly escalating. The 2020 date visible on the back indicates the print year. The series features national monuments and symbols emphasizing Zimbabwean heritage and independence.", "language_script": "Latin", "languages": "en", "serial_number": "AG4013766", "serial_prefix": "AG", "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": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 0.99, "currency": 0.95, "denomination": 0.95, "series_name": 0.85, "series_year": 0.9, "issue_year": 0.0, "issuer": 0.99, "signatures": 0.75, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.7, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.95, "pick_number": 0.7, "serial_number": 0.95, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.85}, "overall_confidence": 0.55, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.99, "currency": 0.95, "denomination": 0.95, "series_name": 0.85, "series_year": 0.9, "issue_year": 0.0, "issuer": 0.99, "signatures": 0.75, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.7, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.95, "pick_number": 0.7, "serial_number": 0.95, "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 07:50:26
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWL",
    "denomination": "20 Dollars",
    "series_year": "2020",
    "series_name": "Fourth Dollar series",
    "series_range": "2019–present",
    "issue_year": "2020",
    "era": "1990_present",
    "legal_status": "in_circulation",
    "legal_status_date": null,
    "predecessor_currency": "Bond notes and RTGS dollar",
    "successor_currency": null,

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: John Mangudya",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "145x70",
    "watermark": "Zimbabwe Bird in clear field at left",
    "security_features": "hologram,thread,microprint,raised_print,latent_image",
    "color_palette": "#8b9dc3,#f5deb3,#1a1a1a",

    "portrait_subject": null,
    "reverse_subject": "Balancing Rocks formation",
    "themes": "wildlife,architecture,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,

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

    "front_description": "African elephant (Loxodonta africana), the largest land mammal, depicted at center with trunk raised. Elephants are a significant part of Zimbabwe's wildlife heritage and tourism economy, with major populations in Hwange National Park and along the Zambezi Valley. The note features the Zimbabwe Bird at left, the national emblem derived from soapstone sculptures found at Great Zimbabwe ruins. The design emphasizes Zimbabwe's natural heritage following the hyperinflation era and currency reforms of the 2000s–2010s.",
    "back_description": "The Balancing Rocks (Chiremba Balancing Rocks), one of Zimbabwe's most iconic geological formations located in Epworth, near Harare. These granite boulder formations, created by millions of years of erosion, are balanced in seemingly precarious arrangements and have become a national symbol, previously appearing on Zimbabwean currency and featured prominently in the country's geological and tourism identity. The back design also incorporates the Zimbabwe Bird emblem at upper right.",
    "historical_notes": "This note belongs to Zimbabwe's Fourth Dollar (ZWL) series, reintroduced in June 2019 after a decade-long suspension of the national currency following catastrophic hyperinflation (2007–2009) that peaked at 89.7 sextillion percent. During the interim period (2009–2019), Zimbabwe used a multi-currency system dominated by US dollars, South African rand, and other foreign currencies, then Bond notes and RTGS dollars. The date 'HARARE 2020' printed on the back indicates this specific note was issued in 2020 as part of the currency stabilization efforts under Governor John Mangudya's tenure (2014–present). The serial number prefix 'AC' represents the block/series identifier for this print run. The Fourth Dollar has struggled with renewed inflation but remains legal tender as of 2024.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": "AC0108710",
    "serial_prefix": "AC",
    "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": 5,
    "estimated_value_high": 15,
    "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": 0.95,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.9,
      "watermark": 0.95,
      "portrait_subject": 1.0,
      "reverse_subject": 0.95,
      "pick_number": 0.7,
      "serial_number": 1.0,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.9
    },
    "overall_confidence": 0.95,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWL", "denomination": "20 Dollars", "series_year": "2020", "series_name": "Fourth Dollar series", "series_range": "2019\u2013present", "issue_year": "2020", "era": "1990_present", "legal_status": "in_circulation", "legal_status_date": null, "predecessor_currency": "Bond notes and RTGS dollar", "successor_currency": null, "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: John Mangudya", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "145x70", "watermark": "Zimbabwe Bird in clear field at left", "security_features": "hologram,thread,microprint,raised_print,latent_image", "color_palette": "#8b9dc3,#f5deb3,#1a1a1a", "portrait_subject": null, "reverse_subject": "Balancing Rocks formation", "themes": "wildlife,architecture,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "NEW", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "African elephant (Loxodonta africana), the largest land mammal, depicted at center with trunk raised. Elephants are a significant part of Zimbabwe's wildlife heritage and tourism economy, with major populations in Hwange National Park and along the Zambezi Valley. The note features the Zimbabwe Bird at left, the national emblem derived from soapstone sculptures found at Great Zimbabwe ruins. The design emphasizes Zimbabwe's natural heritage following the hyperinflation era and currency reforms of the 2000s\u20132010s.", "back_description": "The Balancing Rocks (Chiremba Balancing Rocks), one of Zimbabwe's most iconic geological formations located in Epworth, near Harare. These granite boulder formations, created by millions of years of erosion, are balanced in seemingly precarious arrangements and have become a national symbol, previously appearing on Zimbabwean currency and featured prominently in the country's geological and tourism identity. The back design also incorporates the Zimbabwe Bird emblem at upper right.", "historical_notes": "This note belongs to Zimbabwe's Fourth Dollar (ZWL) series, reintroduced in June 2019 after a decade-long suspension of the national currency following catastrophic hyperinflation (2007\u20132009) that peaked at 89.7 sextillion percent. During the interim period (2009\u20132019), Zimbabwe used a multi-currency system dominated by US dollars, South African rand, and other foreign currencies, then Bond notes and RTGS dollars. The date 'HARARE 2020' printed on the back indicates this specific note was issued in 2020 as part of the currency stabilization efforts under Governor John Mangudya's tenure (2014\u2013present). The serial number prefix 'AC' represents the block/series identifier for this print run. The Fourth Dollar has struggled with renewed inflation but remains legal tender as of 2024.", "language_script": "Latin", "languages": "en", "serial_number": "AC0108710", "serial_prefix": "AC", "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": 5, "estimated_value_high": 15, "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": 0.95, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.95, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.7, "serial_number": 1.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.9}, "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": 0.95, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.95, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.7, "serial_number": 1.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.9}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:50:44
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWL",
    "denomination": "5",
    "series_year": "2019",
    "series_name": "RTGS Dollar series",
    "series_range": "2019–2020",
    "issue_year": "2019",
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": "2019-06-24",
    "predecessor_currency": "Bond notes and coins",
    "successor_currency": "Zimbabwe Dollar (ZWL redenominated, second dollar)",

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: John Mangudya",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "150x73",
    "watermark": "Zimbabwe bird statue in clear field at left",
    "security_features": "thread,microprint,see_through_register,latent_image,intaglio",
    "color_palette": "#d8b5d8,#f5f5dc,#2f4f4f",

    "portrait_subject": null,
    "reverse_subject": "African elephants",
    "themes": "wildlife,architecture",
    "commemorative": false,
    "commemorative_occasion": null,

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

    "front_description": "Victoria Falls, one of the world's largest waterfalls located on the Zambezi River at the border between Zambia and Zimbabwe. The falls are a UNESCO World Heritage Site and a major symbol of Zimbabwe's natural heritage, known locally as Mosi-oa-Tunya ('The Smoke That Thunders'). The front features tropical vegetation including palm trees and other indigenous flora native to the falls region.",
    "back_description": "African elephants (Loxodonta africana) in their natural habitat with acacia trees, representing Zimbabwe's rich wildlife heritage. The elephant is the largest living land animal and a keystone species in African ecosystems; Zimbabwe is home to significant elephant populations in national parks such as Hwange. The denomination '2' visible on the back indicates this is a mismatched pair, as the front shows a 5 dollar note.",
    "historical_notes": "This note belongs to the short-lived RTGS Dollar series introduced in February 2019 when Zimbabwe formally abandoned its multi-currency system and reintroduced a domestic currency. The RTGS Dollar (Real-Time Gross Settlement Dollar) was the transitional currency that replaced bond notes at par. The printer 'HARARE 2019' indicates local printing. This series was replaced in June 2019 when the RTGS Dollar was redenominated and renamed the Zimbabwe Dollar (ZWL), ending the legal tender status of these notes after only four months of circulation. The series represents Zimbabwe's attempt to stabilize its economy after years of hyperinflation and dollarization. Serial prefix 'AD' is consistent with documented prefix ranges for the 2019 RTGS series.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": "AD8473444",
    "serial_prefix": "AD",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

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

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

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

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWL", "denomination": "5", "series_year": "2019", "series_name": "RTGS Dollar series", "series_range": "2019\u20132020", "issue_year": "2019", "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": "2019-06-24", "predecessor_currency": "Bond notes and coins", "successor_currency": "Zimbabwe Dollar (ZWL redenominated, second dollar)", "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: John Mangudya", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "150x73", "watermark": "Zimbabwe bird statue in clear field at left", "security_features": "thread,microprint,see_through_register,latent_image,intaglio", "color_palette": "#d8b5d8,#f5f5dc,#2f4f4f", "portrait_subject": null, "reverse_subject": "African elephants", "themes": "wildlife,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Victoria Falls, one of the world's largest waterfalls located on the Zambezi River at the border between Zambia and Zimbabwe. The falls are a UNESCO World Heritage Site and a major symbol of Zimbabwe's natural heritage, known locally as Mosi-oa-Tunya ('The Smoke That Thunders'). The front features tropical vegetation including palm trees and other indigenous flora native to the falls region.", "back_description": "African elephants (Loxodonta africana) in their natural habitat with acacia trees, representing Zimbabwe's rich wildlife heritage. The elephant is the largest living land animal and a keystone species in African ecosystems; Zimbabwe is home to significant elephant populations in national parks such as Hwange. The denomination '2' visible on the back indicates this is a mismatched pair, as the front shows a 5 dollar note.", "historical_notes": "This note belongs to the short-lived RTGS Dollar series introduced in February 2019 when Zimbabwe formally abandoned its multi-currency system and reintroduced a domestic currency. The RTGS Dollar (Real-Time Gross Settlement Dollar) was the transitional currency that replaced bond notes at par. The printer 'HARARE 2019' indicates local printing. This series was replaced in June 2019 when the RTGS Dollar was redenominated and renamed the Zimbabwe Dollar (ZWL), ending the legal tender status of these notes after only four months of circulation. The series represents Zimbabwe's attempt to stabilize its economy after years of hyperinflation and dollarization. Serial prefix 'AD' is consistent with documented prefix ranges for the 2019 RTGS series.", "language_script": "Latin", "languages": "en", "serial_number": "AD8473444", "serial_prefix": "AD", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": null, "estimated_value_low": 2, "estimated_value_high": 8, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 0.95, "denomination": 0.95, "series_name": 0.9, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.85, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.0, "serial_number": 1.0, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.9, "condition_grade": 0.95}, "overall_confidence": 0.65, "flags": ["mismatched_pair"]}

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


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:50:44
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWL",
    "denomination": "5",
    "series_year": "2019",
    "series_name": "Zimbabwe Dollar 2019 Series",
    "series_range": "2019–present",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "in_circulation",
    "legal_status_date": "2019",
    "predecessor_currency": "Bond Notes / RTGS Dollars",
    "successor_currency": null,

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: John Mangudya",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "148x70",
    "watermark": "Zimbabwe Bird and denomination",
    "security_features": "thread,microprint,intaglio,see_through_register",
    "color_palette": "#8B4513,#DDA0DD,#F5DEB3",

    "portrait_subject": null,
    "reverse_subject": "Balancing Rocks of Epworth",
    "themes": "wildlife,architecture,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-102",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Giraffe (Giraffa camelopardalis), Zimbabwe's iconic wildlife species, depicted in a naturalistic savanna setting. The giraffe represents the country's rich biodiversity and wildlife heritage, being one of the most recognizable animals in Zimbabwean national parks including Hwange. The Zimbabwe Bird, derived from soapstone sculptures found at Great Zimbabwe ruins, appears as the national emblem.",
    "back_description": "The Balancing Rocks of Epworth (Chiremba Balancing Rocks), a distinctive geological formation located near Harare. These naturally balanced granite rocks are a national symbol of Zimbabwe, representing the delicate balance needed in economic and political affairs. They appear on Zimbabwean currency and were once featured on the former Zimbabwean dollar notes.",
    "historical_notes": "This note is part of the 2019 Zimbabwe Dollar series introduced after the reintroduction of the Zimbabwe dollar following years of hyperinflation and the use of multi-currency systems. The Reserve Bank of Zimbabwe redenominated the currency in February 2019, initially as RTGS dollars, then officially as Zimbabwe dollars in June 2019. The series features wildlife on the front and the iconic Balancing Rocks on the back, continuing design traditions from earlier Zimbabwean currency. Governor John Mangudya's signature appears, as he has served as RBZ Governor since 2014. NOTE: The front image shows a 5 Dollar note while the back image shows a 2 Dollar note - these are mismatched.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": "AD8473444",
    "serial_prefix": "AD",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

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

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

    "field_confidence": {
      "country": 0.99,
      "currency": 0.95,
      "denomination": 0.95,
      "series_name": 0.85,
      "series_year": 0.90,
      "issue_year": 0.0,
      "issuer": 0.99,
      "signatures": 0.75,
      "printer": 0.0,
      "material": 0.90,
      "dimensions_mm": 0.70,
      "watermark": 0.75,
      "portrait_subject": 0.0,
      "reverse_subject": 0.90,
      "pick_number": 0.70,
      "serial_number": 0.98,
      "front_description": 0.85,
      "back_description": 0.90,
      "historical_notes": 0.85,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.60,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWL", "denomination": "5", "series_year": "2019", "series_name": "Zimbabwe Dollar 2019 Series", "series_range": "2019\u2013present", "issue_year": null, "era": "1990_present", "legal_status": "in_circulation", "legal_status_date": "2019", "predecessor_currency": "Bond Notes / RTGS Dollars", "successor_currency": null, "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: John Mangudya", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "148x70", "watermark": "Zimbabwe Bird and denomination", "security_features": "thread,microprint,intaglio,see_through_register", "color_palette": "#8B4513,#DDA0DD,#F5DEB3", "portrait_subject": null, "reverse_subject": "Balancing Rocks of Epworth", "themes": "wildlife,architecture,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-102", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Giraffe (Giraffa camelopardalis), Zimbabwe's iconic wildlife species, depicted in a naturalistic savanna setting. The giraffe represents the country's rich biodiversity and wildlife heritage, being one of the most recognizable animals in Zimbabwean national parks including Hwange. The Zimbabwe Bird, derived from soapstone sculptures found at Great Zimbabwe ruins, appears as the national emblem.", "back_description": "The Balancing Rocks of Epworth (Chiremba Balancing Rocks), a distinctive geological formation located near Harare. These naturally balanced granite rocks are a national symbol of Zimbabwe, representing the delicate balance needed in economic and political affairs. They appear on Zimbabwean currency and were once featured on the former Zimbabwean dollar notes.", "historical_notes": "This note is part of the 2019 Zimbabwe Dollar series introduced after the reintroduction of the Zimbabwe dollar following years of hyperinflation and the use of multi-currency systems. The Reserve Bank of Zimbabwe redenominated the currency in February 2019, initially as RTGS dollars, then officially as Zimbabwe dollars in June 2019. The series features wildlife on the front and the iconic Balancing Rocks on the back, continuing design traditions from earlier Zimbabwean currency. Governor John Mangudya's signature appears, as he has served as RBZ Governor since 2014. NOTE: The front image shows a 5 Dollar note while the back image shows a 2 Dollar note - these are mismatched.", "language_script": "Latin", "languages": "en", "serial_number": "AD8473444", "serial_prefix": "AD", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Note appears uncirculated with sharp corners and no folds visible", "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 0.99, "currency": 0.95, "denomination": 0.95, "series_name": 0.85, "series_year": 0.9, "issue_year": 0.0, "issuer": 0.99, "signatures": 0.75, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.7, "watermark": 0.75, "portrait_subject": 0.0, "reverse_subject": 0.9, "pick_number": 0.7, "serial_number": 0.98, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.85}, "overall_confidence": 0.6, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.99, "currency": 0.95, "denomination": 0.95, "series_name": 0.85, "series_year": 0.9, "issue_year": 0.0, "issuer": 0.99, "signatures": 0.75, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.7, "watermark": 0.75, "portrait_subject": 0.0, "reverse_subject": 0.9, "pick_number": 0.7, "serial_number": 0.98, "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 07:50:45
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,
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    "dimensions_mm": null,
    "watermark": null,
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    "color_palette": null,
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    "krause_id": null,
    "wpm_id": null,
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    "front_description": "The front displays 'RESERVE BANK OF ZIMBABWE' and 'TWO DOLLARS' with serial number AJ1185088. The central image shows the Chiremba balancing rocks (also known as balancing stones or Epworth balancing rocks), a natural geological formation near Harare that has become a national symbol of Zimbabwe, representing endurance and balance. These granite boulders have appeared on multiple Zimbabwean banknote series and are featured on the national coat of arms.",
    "back_description": "The back shows text in multiple languages: 'SUID-AFRIKAANSE RESERWEBANK' (Afrikaans), 'LIBHANGESILULUḼENINGIZIMU AFRIKA' (likely Venda or other South African language), and displays '10 RAND' as the denomination with serial number AE96351507A. The central motif features two white rhinoceroses (Ceratotherium simum), an endangered species native to southern Africa, depicted as an adult and juvenile. The rhinoceros is a recurring theme on South African rand banknotes, symbolizing wildlife conservation.",
    "historical_notes": "This pair of images represents a critical catalogue error: the front and back do NOT belong to the same banknote. The front is from a Zimbabwean 2 dollar note issued by the Reserve Bank of Zimbabwe, while the back is from a South African 10 rand note issued by the South African Reserve Bank. The serial numbers differ (AJ1185088 vs AE96351507A), the issuers differ, the currencies differ, and the denominations differ. This mismatch makes definitive cataloguing impossible without correct image pairs. Zimbabwe's dollar underwent multiple redenominations during hyperinflation (2006–2009), while South Africa's rand has been stable since 1961. The Chiremba balancing rocks appeared on various Zimbabwe dollar series, while the rhinoceros motif has featured on South African rand notes in multiple series from the 1990s onward.",
    "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,
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      "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 'RESERVE BANK OF ZIMBABWE' and 'TWO DOLLARS' with serial number AJ1185088. The central image shows the Chiremba balancing rocks (also known as balancing stones or Epworth balancing rocks), a natural geological formation near Harare that has become a national symbol of Zimbabwe, representing endurance and balance. These granite boulders have appeared on multiple Zimbabwean banknote series and are featured on the national coat of arms.", "back_description": "The back shows text in multiple languages: 'SUID-AFRIKAANSE RESERWEBANK' (Afrikaans), 'LIBHANGESILULU\u1e3cENINGIZIMU AFRIKA' (likely Venda or other South African language), and displays '10 RAND' as the denomination with serial number AE96351507A. The central motif features two white rhinoceroses (Ceratotherium simum), an endangered species native to southern Africa, depicted as an adult and juvenile. The rhinoceros is a recurring theme on South African rand banknotes, symbolizing wildlife conservation.", "historical_notes": "This pair of images represents a critical catalogue error: the front and back do NOT belong to the same banknote. The front is from a Zimbabwean 2 dollar note issued by the Reserve Bank of Zimbabwe, while the back is from a South African 10 rand note issued by the South African Reserve Bank. The serial numbers differ (AJ1185088 vs AE96351507A), the issuers differ, the currencies differ, and the denominations differ. This mismatch makes definitive cataloguing impossible without correct image pairs. Zimbabwe's dollar underwent multiple redenominations during hyperinflation (2006\u20132009), while South Africa's rand has been stable since 1961. The Chiremba balancing rocks appeared on various Zimbabwe dollar series, while the rhinoceros motif has featured on South African rand notes in multiple series from the 1990s onward.", "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:
[cell repeats an earlier one in this file: 414 characters]


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:50:45
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": "1990_present",
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    "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": "thread,microprint",
    "color_palette": "#4a7c59,#8b7355,#c4a35a",

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

    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
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    "front_description": "This note displays the Kopje Fountain and State House (formerly Government House) in Harare. The Kopje Fountain, located at the base of the Kopje hill in central Harare, is a notable civic landmark. State House serves as the official residence of the President of Zimbabwe. The Zimbabwe Bird emblem appears at left, representing the soapstone bird sculptures found at Great Zimbabwe ruins, adopted as the national emblem at independence in 1980.",
    "back_description": "White rhinoceros (Ceratotherium simum) adult and calf, representing Southern African wildlife. The white rhinoceros is native to the region and is a conservation priority species. This depicts the iconic Big Five wildlife of Southern Africa commonly featured on the region's banknotes.",
    "historical_notes": "CRITICAL NOTE: These two images are NOT from the same banknote. The front image shows a Zimbabwe 2 Dollars note from the Reserve Bank of Zimbabwe's post-2019 RTGS dollar series, while the back image shows a South African 10 Rand note from the South African Reserve Bank's 'Big Five' series introduced in 2012. The Zimbabwe note features local landmarks while the South African note features indigenous wildlife. These are mismatched images from two completely different countries' currencies.",
    "language_script": "Latin",
    "languages": "en,af,zu",

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

    "condition_grade": "UNC",
    "condition_notes": "Both notes appear uncirculated with crisp paper and sharp corners, though they are from different countries",

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

    "field_confidence": {
      "country": 0.2,
      "currency": 0.2,
      "denomination": 0.2,
      "series_name": 0.3,
      "series_year": 0.3,
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      "historical_notes": 0.95,
      "condition_grade": 0.80
    },
    "overall_confidence": 0.25,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": null, "currency": null, "denomination": null, "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": "1990_present", "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": "thread,microprint", "color_palette": "#4a7c59,#8b7355,#c4a35a", "portrait_subject": null, "reverse_subject": null, "themes": "architecture,wildlife", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "This note displays the Kopje Fountain and State House (formerly Government House) in Harare. The Kopje Fountain, located at the base of the Kopje hill in central Harare, is a notable civic landmark. State House serves as the official residence of the President of Zimbabwe. The Zimbabwe Bird emblem appears at left, representing the soapstone bird sculptures found at Great Zimbabwe ruins, adopted as the national emblem at independence in 1980.", "back_description": "White rhinoceros (Ceratotherium simum) adult and calf, representing Southern African wildlife. The white rhinoceros is native to the region and is a conservation priority species. This depicts the iconic Big Five wildlife of Southern Africa commonly featured on the region's banknotes.", "historical_notes": "CRITICAL NOTE: These two images are NOT from the same banknote. The front image shows a Zimbabwe 2 Dollars note from the Reserve Bank of Zimbabwe's post-2019 RTGS dollar series, while the back image shows a South African 10 Rand note from the South African Reserve Bank's 'Big Five' series introduced in 2012. The Zimbabwe note features local landmarks while the South African note features indigenous wildlife. These are mismatched images from two completely different countries' currencies.", "language_script": "Latin", "languages": "en,af,zu", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Both notes appear uncirculated with crisp paper and sharp corners, though they are from different countries", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.2, "currency": 0.2, "denomination": 0.2, "series_name": 0.3, "series_year": 0.3, "issue_year": 0.3, "issuer": 0.2, "signatures": 0.0, "printer": 0.0, "material": 0.85, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.75, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.8, "back_description": 0.85, "historical_notes": 0.95, "condition_grade": 0.8}, "overall_confidence": 0.25, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.2, "currency": 0.2, "denomination": 0.2, "series_name": 0.3, "series_year": 0.3, "issue_year": 0.3, "issuer": 0.2, "signatures": 0.0, "printer": 0.0, "material": 0.85, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.75, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.8, "back_description": 0.85, "historical_notes": 0.95, "condition_grade": 0.8}


provider: openai
model: gpt-4o
status: ok
created_at: 2026-05-10 07:50:45
prompt_version: v3-year-reasoning
raw_response:
  {
    "country": "Zimbabwe",
    "currency": "ZWD",
    "denomination": "2 Dollars",
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "withdrawn",
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    "predecessor_currency": null,
    "successor_currency": "USD",

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "paper",
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    "watermark": null,
    "security_features": "microprint",
    "color_palette": "#cfd8c5,#ffe4b5,#708090",

    "portrait_subject": null,
    "reverse_subject": "Rhinos",
    "themes": "wildlife, architecture",
    "commemorative": false,
    "commemorative_occasion": null,

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

    "front_description": "The front of the note features the iconic Balancing Rocks near Harare, Zimbabwe, a symbol of stable governance. Also depicted is a government building.",
    "back_description": "The reverse side depicts two rhinos, representing the diverse wildlife of Zimbabwe.",
    "historical_notes": "This note was part of the Zimbabwean dollar series issued by the Reserve Bank of Zimbabwe prior to the adoption of the US dollar due to hyperinflation.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": "AJ1185088",
    "serial_prefix": "AJ",
    "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": 0.9,
      "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": 0.0,
      "reverse_subject": 0.8,
      "pick_number": 0.0,
      "serial_number": 0.9,
      "front_description": 0.8,
      "back_description": 0.8,
      "historical_notes": 0.8,
      "condition_grade": 0.0
    },
    "overall_confidence": 0.7,
    "flags": [
      "mismatched_pair"
    ]
  }

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWD", "denomination": "2 Dollars", "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": "USD", "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": "microprint", "color_palette": "#cfd8c5,#ffe4b5,#708090", "portrait_subject": null, "reverse_subject": "Rhinos", "themes": "wildlife, architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "The front of the note features the iconic Balancing Rocks near Harare, Zimbabwe, a symbol of stable governance. Also depicted is a government building.", "back_description": "The reverse side depicts two rhinos, representing the diverse wildlife of Zimbabwe.", "historical_notes": "This note was part of the Zimbabwean dollar series issued by the Reserve Bank of Zimbabwe prior to the adoption of the US dollar due to hyperinflation.", "language_script": "Latin", "languages": "en", "serial_number": "AJ1185088", "serial_prefix": "AJ", "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": 0.9, "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": 0.0, "reverse_subject": 0.8, "pick_number": 0.0, "serial_number": 0.9, "front_description": 0.8, "back_description": 0.8, "historical_notes": 0.8, "condition_grade": 0.0}, "overall_confidence": 0.7, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 1.0, "currency": 0.9, "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": 0.0, "reverse_subject": 0.8, "pick_number": 0.0, "serial_number": 0.9, "front_description": 0.8, "back_description": 0.8, "historical_notes": 0.8, "condition_grade": 0.0}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:50:45
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWL",
    "denomination": "10",
    "series_year": "2019",
    "series_name": "RTGS Dollar series",
    "series_range": "2019–2020",
    "issue_year": "2019",
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": "2020-06-24",
    "predecessor_currency": "Bond notes",
    "successor_currency": "Zimbabwe Dollar (Fourth)",

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: signature visible but name not clearly legible",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "145x70",
    "watermark": "Zimbabwe Bird sculpture in clear field at left",
    "security_features": "thread,microprint,intaglio,latent_image,see_through_register",
    "color_palette": "#8b4513,#d2b48c,#f5deb3",

    "portrait_subject": "Cape Buffalo",
    "reverse_subject": "Balancing Rocks (Epworth Balancing Rocks)",
    "themes": "wildlife,architecture",
    "commemorative": false,
    "commemorative_occasion": null,

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

    "front_description": "Cape Buffalo (Syncerus caffer), one of Africa's most formidable large mammals and member of the 'Big Five' game animals. Indigenous to sub-Saharan Africa including Zimbabwe, the buffalo is depicted as a symbol of Zimbabwe's wildlife heritage and safari tourism industry. The Zimbabwe Bird (soapstone sculpture from Great Zimbabwe ruins, national emblem) appears at upper left.",
    "back_description": "Balancing Rocks (Epworth Balancing Rocks), naturally formed granite rock formations near Harare that have become an iconic symbol of Zimbabwe. These geological formations, created by millions of years of erosion, appear on Zimbabwe's currency and national iconography. The back inscription reads 'HARARE 2019', indicating the place and year of this note's design. The text 'I PROMISE TO PAY THE BEARER ON DEMAND FIVE DOLLARS' appears, reflecting the denomination mismatch between front (10) and back (5).",
    "historical_notes": "This note represents the RTGS Dollar series issued by the Reserve Bank of Zimbabwe in 2019 as part of the country's reintroduction of a local currency after years of using foreign currencies (primarily USD). The RTGS (Real Time Gross Settlement) Dollar was introduced in February 2019, replacing bond notes at 1:1, and was initially only an electronic currency before physical notes were issued. This series was withdrawn on June 24, 2020, when the Zimbabwe Dollar (Fourth) was reintroduced. The series is notable for featuring Zimbabwe's wildlife and natural landmarks. CRITICAL FLAG: The front and back images show DIFFERENT DENOMINATIONS—the front shows '10 TEN DOLLARS' while the back shows '5 FIVE DOLLARS', indicating these are mismatched images from two different notes in the same series. The serial number AL6554223 appears on the 10-dollar note (front). No known public serial-year encoding identified for Reserve Bank of Zimbabwe.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": "AL6554223",
    "serial_prefix": "AL",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "UNC",
    "condition_notes": "Appears uncirculated with crisp 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": 0.5,
      "series_name": 0.9,
      "series_year": 0.95,
      "issue_year": 0.95,
      "issuer": 1.0,
      "signatures": 0.3,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.85,
      "watermark": 0.9,
      "portrait_subject": 0.95,
      "reverse_subject": 0.9,
      "pick_number": 0.0,
      "serial_number": 0.98,
      "front_description": 0.9,
      "back_description": 0.85,
      "historical_notes": 0.9,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.5,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWL", "denomination": "10", "series_year": "2019", "series_name": "RTGS Dollar series", "series_range": "2019\u20132020", "issue_year": "2019", "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": "2020-06-24", "predecessor_currency": "Bond notes", "successor_currency": "Zimbabwe Dollar (Fourth)", "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: signature visible but name not clearly legible", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "145x70", "watermark": "Zimbabwe Bird sculpture in clear field at left", "security_features": "thread,microprint,intaglio,latent_image,see_through_register", "color_palette": "#8b4513,#d2b48c,#f5deb3", "portrait_subject": "Cape Buffalo", "reverse_subject": "Balancing Rocks (Epworth Balancing Rocks)", "themes": "wildlife,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Cape Buffalo (Syncerus caffer), one of Africa's most formidable large mammals and member of the 'Big Five' game animals. Indigenous to sub-Saharan Africa including Zimbabwe, the buffalo is depicted as a symbol of Zimbabwe's wildlife heritage and safari tourism industry. The Zimbabwe Bird (soapstone sculpture from Great Zimbabwe ruins, national emblem) appears at upper left.", "back_description": "Balancing Rocks (Epworth Balancing Rocks), naturally formed granite rock formations near Harare that have become an iconic symbol of Zimbabwe. These geological formations, created by millions of years of erosion, appear on Zimbabwe's currency and national iconography. The back inscription reads 'HARARE 2019', indicating the place and year of this note's design. The text 'I PROMISE TO PAY THE BEARER ON DEMAND FIVE DOLLARS' appears, reflecting the denomination mismatch between front (10) and back (5).", "historical_notes": "This note represents the RTGS Dollar series issued by the Reserve Bank of Zimbabwe in 2019 as part of the country's reintroduction of a local currency after years of using foreign currencies (primarily USD). The RTGS (Real Time Gross Settlement) Dollar was introduced in February 2019, replacing bond notes at 1:1, and was initially only an electronic currency before physical notes were issued. This series was withdrawn on June 24, 2020, when the Zimbabwe Dollar (Fourth) was reintroduced. The series is notable for featuring Zimbabwe's wildlife and natural landmarks. CRITICAL FLAG: The front and back images show DIFFERENT DENOMINATIONS\u2014the front shows '10 TEN DOLLARS' while the back shows '5 FIVE DOLLARS', indicating these are mismatched images from two different notes in the same series. The serial number AL6554223 appears on the 10-dollar note (front). No known public serial-year encoding identified for Reserve Bank of Zimbabwe.", "language_script": "Latin", "languages": "en", "serial_number": "AL6554223", "serial_prefix": "AL", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Appears uncirculated with crisp 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": 0.5, "series_name": 0.9, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.3, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 0.95, "reverse_subject": 0.9, "pick_number": 0.0, "serial_number": 0.98, "front_description": 0.9, "back_description": 0.85, "historical_notes": 0.9, "condition_grade": 0.85}, "overall_confidence": 0.5, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 1.0, "currency": 0.95, "denomination": 0.5, "series_name": 0.9, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.3, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 0.95, "reverse_subject": 0.9, "pick_number": 0.0, "serial_number": 0.98, "front_description": 0.9, "back_description": 0.85, "historical_notes": 0.9, "condition_grade": 0.85}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:50:45
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWL",
    "denomination": "10",
    "series_year": "2020",
    "series_name": "Fourth Dollar Series",
    "series_range": "2019–present",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "in_circulation",
    "legal_status_date": null,
    "predecessor_currency": "RTGS Dollar",
    "successor_currency": null,

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: John Mangudya",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "148x73",
    "watermark": "Zimbabwe Bird",
    "security_features": "thread,microprint,see_through_register,latent_image",
    "color_palette": "#8B4513,#DEB887,#CD853F",

    "portrait_subject": null,
    "reverse_subject": "Reserve Bank of Zimbabwe headquarters building, Harare; Cape buffalo herd",
    "themes": "wildlife,architecture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-103",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "The Reserve Bank of Zimbabwe headquarters building in Harare, a modernist high-rise tower that serves as the central bank's main office. In the foreground, a herd of Cape buffalo (Syncerus caffer), one of Africa's Big Five game animals and native to Zimbabwe's wildlife reserves. The Zimbabwe Bird, the national emblem derived from soapstone sculptures found at Great Zimbabwe ruins, appears in the upper left corner.",
    "back_description": "The Balancing Rocks of Epworth, a distinctive granite rock formation located near Harare. These geological formations, created through millions of years of weathering, have become a symbol of Zimbabwe and represent the delicate balance needed in economic and environmental matters. The Zimbabwe Bird emblem appears at right.",
    "historical_notes": "MISMATCHED PAIR WARNING: The front image shows a 10 Dollar note while the back image shows a 5 Dollar note dated 'HARARE 2019'. These are two different banknotes from the same series. The Fourth Zimbabwe Dollar was introduced in February 2019 after the collapse of the bond note system. This series replaced the failed RTGS dollar and bond notes, representing Zimbabwe's fourth attempt at establishing a stable local currency after the abandonment of the original Zimbabwe dollar in 2009 due to hyperinflation. The Reserve Bank of Zimbabwe, under Governor John Mangudya, issued these notes featuring indigenous wildlife and national landmarks rather than political figures.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": "AL6554223",
    "serial_prefix": "AL",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

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

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

    "field_confidence": {
      "country": 0.99,
      "currency": 0.95,
      "denomination": 0.95,
      "series_name": 0.85,
      "series_year": 0.85,
      "issue_year": 0.0,
      "issuer": 0.99,
      "signatures": 0.75,
      "printer": 0.0,
      "material": 0.90,
      "dimensions_mm": 0.70,
      "watermark": 0.80,
      "portrait_subject": 0.0,
      "reverse_subject": 0.90,
      "pick_number": 0.70,
      "serial_number": 0.95,
      "front_description": 0.85,
      "back_description": 0.85,
      "historical_notes": 0.80,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.55,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWL", "denomination": "10", "series_year": "2020", "series_name": "Fourth Dollar Series", "series_range": "2019\u2013present", "issue_year": null, "era": "1990_present", "legal_status": "in_circulation", "legal_status_date": null, "predecessor_currency": "RTGS Dollar", "successor_currency": null, "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: John Mangudya", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "148x73", "watermark": "Zimbabwe Bird", "security_features": "thread,microprint,see_through_register,latent_image", "color_palette": "#8B4513,#DEB887,#CD853F", "portrait_subject": null, "reverse_subject": "Reserve Bank of Zimbabwe headquarters building, Harare; Cape buffalo herd", "themes": "wildlife,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-103", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The Reserve Bank of Zimbabwe headquarters building in Harare, a modernist high-rise tower that serves as the central bank's main office. In the foreground, a herd of Cape buffalo (Syncerus caffer), one of Africa's Big Five game animals and native to Zimbabwe's wildlife reserves. The Zimbabwe Bird, the national emblem derived from soapstone sculptures found at Great Zimbabwe ruins, appears in the upper left corner.", "back_description": "The Balancing Rocks of Epworth, a distinctive granite rock formation located near Harare. These geological formations, created through millions of years of weathering, have become a symbol of Zimbabwe and represent the delicate balance needed in economic and environmental matters. The Zimbabwe Bird emblem appears at right.", "historical_notes": "MISMATCHED PAIR WARNING: The front image shows a 10 Dollar note while the back image shows a 5 Dollar note dated 'HARARE 2019'. These are two different banknotes from the same series. The Fourth Zimbabwe Dollar was introduced in February 2019 after the collapse of the bond note system. This series replaced the failed RTGS dollar and bond notes, representing Zimbabwe's fourth attempt at establishing a stable local currency after the abandonment of the original Zimbabwe dollar in 2009 due to hyperinflation. The Reserve Bank of Zimbabwe, under Governor John Mangudya, issued these notes featuring indigenous wildlife and national landmarks rather than political figures.", "language_script": "Latin", "languages": "en", "serial_number": "AL6554223", "serial_prefix": "AL", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Appears uncirculated with sharp corners and no visible folds or wear", "estimated_value_low": 1, "estimated_value_high": 3, "value_currency": "USD", "field_confidence": {"country": 0.99, "currency": 0.95, "denomination": 0.95, "series_name": 0.85, "series_year": 0.85, "issue_year": 0.0, "issuer": 0.99, "signatures": 0.75, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.7, "watermark": 0.8, "portrait_subject": 0.0, "reverse_subject": 0.9, "pick_number": 0.7, "serial_number": 0.95, "front_description": 0.85, "back_description": 0.85, "historical_notes": 0.8, "condition_grade": 0.85}, "overall_confidence": 0.55, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.99, "currency": 0.95, "denomination": 0.95, "series_name": 0.85, "series_year": 0.85, "issue_year": 0.0, "issuer": 0.99, "signatures": 0.75, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.7, "watermark": 0.8, "portrait_subject": 0.0, "reverse_subject": 0.9, "pick_number": 0.7, "serial_number": 0.95, "front_description": 0.85, "back_description": 0.85, "historical_notes": 0.8, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:51:10
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWL",
    "denomination": "20000000000",
    "series_year": "2008",
    "series_name": "Third Dollar hyperinflation series",
    "series_range": "2008–2009",
    "issue_year": "2008",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "2009-04-12",
    "predecessor_currency": "Zimbabwe Dollar (second)",
    "successor_currency": "Multi-currency system (primarily USD, ZAR)",

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: Dr. G. Gono",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "145x72",
    "watermark": "Zimbabwe Bird in clear field",
    "security_features": "thread, microprint, latent_image, intaglio",
    "color_palette": "#d4a574,#8b9c7a,#f5e6d3",

    "portrait_subject": null,
    "reverse_subject": "Balancing Rocks (Chiremba Balancing Rocks)",
    "themes": "architecture,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "86",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "This note bears the national coat of arms of Zimbabwe at upper left, featuring the Zimbabwe Bird, a pickaxe and hoe crossed below a torse, and the motto \"Unity Freedom Work\". The front displays the denomination \"10 RAND\" from a South African Reserve Bank note that appears to have been erroneously paired with this Zimbabwean reverse. The South African note features Nelson Mandela (1918–2013), anti-apartheid revolutionary and first democratically elected President of South Africa (1994–1999), honored on South African currency since 2012.",
    "back_description": "Chiremba Balancing Rocks (also known as Epworth Balancing Rocks), a natural geological formation of precariously stacked granite boulders located near Harare, Zimbabwe. These rocks have become an iconic national symbol, representing stability and balance, and appear on various Zimbabwean banknotes and the old Zimbabwean dollar coins. The rocks are part of Zimbabwe's rich geological heritage of granite kopjes formed over millions of years through weathering and erosion.",
    "historical_notes": "This appears to be a mismatched pair: the front shows a South African Reserve Bank 10 Rand note from the Nelson Mandela series (introduced 2012–2013, still in circulation), while the back shows a Reserve Bank of Zimbabwe 20 Billion Dollar note from 2008. The Zimbabwean note was issued during the peak of Zimbabwe's catastrophic hyperinflation (2007–2008), when the country experienced one of the worst cases of hyperinflation in recorded history, with inflation rates reaching billions of percent per year. The Third Zimbabwe Dollar (ZWL, August 2008–February 2009) saw denominations escalate from millions to trillions within months. Signed by Dr. Gideon Gono, Governor of the Reserve Bank from 2003–2013, who presided over the printing of increasingly large denominations in a futile attempt to keep pace with inflation. The currency was officially demonetized in April 2009 when Zimbabwe adopted a multi-currency system. These hyperinflation notes are now collectible reminders of economic collapse. The P-86 20 Billion Dollar note is readily available on the collector market given the massive quantities printed.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": "AA5668377",
    "serial_prefix": "AA",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "UNC",
    "condition_notes": "Both notes appear uncirculated with sharp corners and no visible wear",

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

    "field_confidence": {
      "country": 0.5,
      "currency": 0.5,
      "denomination": 0.5,
      "series_name": 0.95,
      "series_year": 0.95,
      "issue_year": 0.95,
      "issuer": 0.5,
      "signatures": 0.95,
      "printer": 0.0,
      "material": 0.90,
      "dimensions_mm": 0.85,
      "watermark": 0.90,
      "portrait_subject": 0.0,
      "reverse_subject": 0.95,
      "pick_number": 0.95,
      "serial_number": 0.95,
      "front_description": 0.85,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.55,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWL", "denomination": "20000000000", "series_year": "2008", "series_name": "Third Dollar hyperinflation series", "series_range": "2008\u20132009", "issue_year": "2008", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "2009-04-12", "predecessor_currency": "Zimbabwe Dollar (second)", "successor_currency": "Multi-currency system (primarily USD, ZAR)", "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: Dr. G. Gono", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "145x72", "watermark": "Zimbabwe Bird in clear field", "security_features": "thread, microprint, latent_image, intaglio", "color_palette": "#d4a574,#8b9c7a,#f5e6d3", "portrait_subject": null, "reverse_subject": "Balancing Rocks (Chiremba Balancing Rocks)", "themes": "architecture,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "86", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "This note bears the national coat of arms of Zimbabwe at upper left, featuring the Zimbabwe Bird, a pickaxe and hoe crossed below a torse, and the motto \"Unity Freedom Work\". The front displays the denomination \"10 RAND\" from a South African Reserve Bank note that appears to have been erroneously paired with this Zimbabwean reverse. The South African note features Nelson Mandela (1918\u20132013), anti-apartheid revolutionary and first democratically elected President of South Africa (1994\u20131999), honored on South African currency since 2012.", "back_description": "Chiremba Balancing Rocks (also known as Epworth Balancing Rocks), a natural geological formation of precariously stacked granite boulders located near Harare, Zimbabwe. These rocks have become an iconic national symbol, representing stability and balance, and appear on various Zimbabwean banknotes and the old Zimbabwean dollar coins. The rocks are part of Zimbabwe's rich geological heritage of granite kopjes formed over millions of years through weathering and erosion.", "historical_notes": "This appears to be a mismatched pair: the front shows a South African Reserve Bank 10 Rand note from the Nelson Mandela series (introduced 2012\u20132013, still in circulation), while the back shows a Reserve Bank of Zimbabwe 20 Billion Dollar note from 2008. The Zimbabwean note was issued during the peak of Zimbabwe's catastrophic hyperinflation (2007\u20132008), when the country experienced one of the worst cases of hyperinflation in recorded history, with inflation rates reaching billions of percent per year. The Third Zimbabwe Dollar (ZWL, August 2008\u2013February 2009) saw denominations escalate from millions to trillions within months. Signed by Dr. Gideon Gono, Governor of the Reserve Bank from 2003\u20132013, who presided over the printing of increasingly large denominations in a futile attempt to keep pace with inflation. The currency was officially demonetized in April 2009 when Zimbabwe adopted a multi-currency system. These hyperinflation notes are now collectible reminders of economic collapse. The P-86 20 Billion Dollar note is readily available on the collector market given the massive quantities printed.", "language_script": "Latin", "languages": "en", "serial_number": "AA5668377", "serial_prefix": "AA", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Both notes appear uncirculated with sharp corners and no visible wear", "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 0.5, "currency": 0.5, "denomination": 0.5, "series_name": 0.95, "series_year": 0.95, "issue_year": 0.95, "issuer": 0.5, "signatures": 0.95, "printer": 0.0, "material": 0.9, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 0.0, "reverse_subject": 0.95, "pick_number": 0.95, "serial_number": 0.95, "front_description": 0.85, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.85}, "overall_confidence": 0.55, "flags": ["mismatched_pair"]}

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


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:51:10
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": "Nelson Mandela (1918–2013), South Africa's first democratically elected president and anti-apartheid revolutionary. He served as President from 1994 to 1999 after spending 27 years in prison. The front features text from the Preamble to the South African Constitution overlaid on his portrait, with the South African coat of arms and a rhinoceros as part of the Big Five animal series.",
    "back_description": "The Chiremba Balancing Rocks near Harare, Zimbabwe, a famous natural rock formation that has become a symbol of Zimbabwe and appears on the country's currency. The rocks are featured as a symbol of the delicate balance required to maintain a stable economy and society.",
    "historical_notes": "MISMATCHED PAIR: The front image is a South African 10 Rand note from the Nelson Mandela series (introduced 2012), featuring Mandela's portrait and signed by Governor Lesetja Kganyago. The back image is a Zimbabwean 20 Billion Dollar note from 2008, issued during Zimbabwe's hyperinflation crisis when the country printed increasingly large denominations. These are clearly two different banknotes from two different countries and cannot be catalogued as a single item.",

    "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": "Cannot assess as mismatched pair",

    "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": 0.0,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.98,
      "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": "Nelson Mandela (1918\u20132013), South Africa's first democratically elected president and anti-apartheid revolutionary. He served as President from 1994 to 1999 after spending 27 years in prison. The front features text from the Preamble to the South African Constitution overlaid on his portrait, with the South African coat of arms and a rhinoceros as part of the Big Five animal series.", "back_description": "The Chiremba Balancing Rocks near Harare, Zimbabwe, a famous natural rock formation that has become a symbol of Zimbabwe and appears on the country's currency. The rocks are featured as a symbol of the delicate balance required to maintain a stable economy and society.", "historical_notes": "MISMATCHED PAIR: The front image is a South African 10 Rand note from the Nelson Mandela series (introduced 2012), featuring Mandela's portrait and signed by Governor Lesetja Kganyago. The back image is a Zimbabwean 20 Billion Dollar note from 2008, issued during Zimbabwe's hyperinflation crisis when the country printed increasingly large denominations. These are clearly two different banknotes from two different countries and cannot be catalogued as a single item.", "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": "Cannot assess as mismatched pair", "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": 0.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.98, "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": 0.95, "reverse_subject": 0.95, "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-sonnet-4-5
status: ok
created_at: 2026-05-10 07:51:49
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWL",
    "denomination": "10000000000",
    "series_year": "2008",
    "series_name": "Third Dollar hyperinflation series",
    "series_range": "2008–2009",
    "issue_year": "2008",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "2009-04-12",
    "predecessor_currency": "Second Zimbabwe Dollar",
    "successor_currency": "Multi-currency system (USD, ZAR, etc.)",

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: Dr. G. Gono",
    "printer": "Fidelity Printers and Refiners (Harare)",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "145x72",
    "watermark": "Zimbabwe Bird in clear field",
    "security_features": "thread, microprint, see_through_register, intaglio",
    "color_palette": "#f5deb3,#d8bfd8,#9acd32",

    "portrait_subject": null,
    "reverse_subject": "Balancing rocks formation",
    "themes": "indigenous_culture, architecture, agriculture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "85",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "The Chiremba Balancing Rocks, a natural geological formation near Harare and Epworth that appears on Zimbabwe's coat of arms and has been a national symbol since independence. The rocks represent the need for balanced development and are one of Zimbabwe's most iconic landmarks. The front also features traditional African geometric patterns and palm trees, symbolizing Zimbabwe's natural beauty and agricultural heritage.",
    "back_description": "Three balancing rocks stacked naturally, representing the Chiremba Balancing Rocks formation. These granite rock formations are a distinctive geological feature of Zimbabwe's landscape and have become a powerful national symbol representing stability, balance, and the delicate equilibrium of nature. The signature 'Dr. G. Gono Governor' appears at bottom, along with the date 'HARARE 2008' and serial number prefix 'AA 91739920'.",
    "historical_notes": "This 10 Billion Dollar note was issued during Zimbabwe's catastrophic hyperinflation period of 2007–2008, which peaked at an estimated 89.7 sextillion percent per month in November 2008. The Third Zimbabwe Dollar (ZWL, redenominated August 2008 at 10^10:1 from the Second Dollar) was itself abandoned in April 2009 when Zimbabwe suspended its currency and adopted a multi-currency system dominated by the US Dollar and South African Rand. Governor Gideon Gono oversaw the Reserve Bank during this period (2003–2013). The note was printed in Harare by Fidelity Printers and Refiners. The serial prefix 'AA' indicates early production in the series. This denomination represents one of the most extreme examples of hyperinflation in modern economic history, comparable only to Hungary 1946 and Weimar Germany 1923. Despite the enormous face value, at issue this note could buy only basic groceries for a day or two. The note is now demonetized and has no legal tender value, though it remains popular with collectors as a historical artifact of hyperinflation.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": "AA91739920",
    "serial_prefix": "AA",
    "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": 0.9,
      "series_year": 0.95,
      "issue_year": 0.95,
      "issuer": 1.0,
      "signatures": 0.95,
      "printer": 0.95,
      "material": 0.95,
      "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": 0.9,
      "back_description": 0.9,
      "historical_notes": 0.95,
      "condition_grade": 0.9
    },
    "overall_confidence": 0.93,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWL", "denomination": "10000000000", "series_year": "2008", "series_name": "Third Dollar hyperinflation series", "series_range": "2008\u20132009", "issue_year": "2008", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "2009-04-12", "predecessor_currency": "Second Zimbabwe Dollar", "successor_currency": "Multi-currency system (USD, ZAR, etc.)", "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: Dr. G. Gono", "printer": "Fidelity Printers and Refiners (Harare)", "engraver": null, "material": "paper", "dimensions_mm": "145x72", "watermark": "Zimbabwe Bird in clear field", "security_features": "thread, microprint, see_through_register, intaglio", "color_palette": "#f5deb3,#d8bfd8,#9acd32", "portrait_subject": null, "reverse_subject": "Balancing rocks formation", "themes": "indigenous_culture, architecture, agriculture", "commemorative": false, "commemorative_occasion": null, "pick_number": "85", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The Chiremba Balancing Rocks, a natural geological formation near Harare and Epworth that appears on Zimbabwe's coat of arms and has been a national symbol since independence. The rocks represent the need for balanced development and are one of Zimbabwe's most iconic landmarks. The front also features traditional African geometric patterns and palm trees, symbolizing Zimbabwe's natural beauty and agricultural heritage.", "back_description": "Three balancing rocks stacked naturally, representing the Chiremba Balancing Rocks formation. These granite rock formations are a distinctive geological feature of Zimbabwe's landscape and have become a powerful national symbol representing stability, balance, and the delicate equilibrium of nature. The signature 'Dr. G. Gono Governor' appears at bottom, along with the date 'HARARE 2008' and serial number prefix 'AA 91739920'.", "historical_notes": "This 10 Billion Dollar note was issued during Zimbabwe's catastrophic hyperinflation period of 2007\u20132008, which peaked at an estimated 89.7 sextillion percent per month in November 2008. The Third Zimbabwe Dollar (ZWL, redenominated August 2008 at 10^10:1 from the Second Dollar) was itself abandoned in April 2009 when Zimbabwe suspended its currency and adopted a multi-currency system dominated by the US Dollar and South African Rand. Governor Gideon Gono oversaw the Reserve Bank during this period (2003\u20132013). The note was printed in Harare by Fidelity Printers and Refiners. The serial prefix 'AA' indicates early production in the series. This denomination represents one of the most extreme examples of hyperinflation in modern economic history, comparable only to Hungary 1946 and Weimar Germany 1923. Despite the enormous face value, at issue this note could buy only basic groceries for a day or two. The note is now demonetized and has no legal tender value, though it remains popular with collectors as a historical artifact of hyperinflation.", "language_script": "Latin", "languages": "en", "serial_number": "AA91739920", "serial_prefix": "AA", "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": 0.9, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.95, "printer": 0.95, "material": 0.95, "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": 0.9, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.9}, "overall_confidence": 0.93, "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": 0.95, "printer": 0.95, "material": 0.95, "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": 0.9, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.9}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:51:50
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWL",
    "denomination": "10000000000000",
    "series_year": "2008",
    "series_name": "Third Dollar hyperinflation series",
    "series_range": "2008–2009",
    "issue_year": "2008",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "2009-04-12",
    "predecessor_currency": "Second Zimbabwean Dollar",
    "successor_currency": "Multi-currency system (USD, ZAR, etc.)",

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: Dr. G. Gono",
    "printer": "Fidelity Printers and Refiners (Harare)",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "147x73",
    "watermark": "Zimbabwe Bird in clear field at right",
    "security_features": "thread, microprint, latent_image, intaglio",
    "color_palette": "#d4c9a8,#9b8ec9,#1a1a1a",

    "portrait_subject": null,
    "reverse_subject": "Balancing Rocks formation",
    "themes": "agriculture, wildlife, indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-85",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Agricultural and wildlife imagery representing Zimbabwe's economy: at left, a traditional fish trap (chirundu) used in subsistence fishing along rivers such as the Zambezi; at right, an African buffalo (Syncerus caffer), one of Africa's Big Five game animals, standing in grassland. These motifs symbolize Zimbabwe's reliance on both agriculture and natural resources during the period of economic crisis and hyperinflation that saw the Reserve Bank issue banknotes reaching into the trillions of dollars.",
    "back_description": "Balancing Rocks formation (also known as the Balancing Stones or Chiremba Balancing Rocks), one of Zimbabwe's most iconic natural landmarks found in Epworth and Matobo Hills. These granite formations are a national symbol appearing on Zimbabwe's currency and coat of arms, representing stability and endurance. The rocks are a product of millions of years of erosion and have cultural significance to the indigenous Shona people, also serving as a key tourist attraction and symbol of Zimbabwe's geological heritage.",
    "historical_notes": "This 10 trillion dollar note was issued in 2008 during the catastrophic Zimbabwean hyperinflation (2007–2009), when inflation reached an estimated 89.7 sextillion percent per month by mid-November 2008. The Reserve Bank of Zimbabwe, under Governor Gideon Gono, issued increasingly large denominations culminating in the 100 trillion dollar note in 2009. The Third Zimbabwean Dollar (ZWL, code 932) was introduced on August 1, 2008, at a rate of 10 billion Second Dollars to 1 Third Dollar. Despite redenominations, hyperinflation continued unabated, driven by land reform policies, loss of agricultural production, government deficit spending, and loss of confidence. The currency was officially demonetized on April 12, 2009, when Zimbabwe adopted a multi-currency system using primarily USD, South African rand, and other stable foreign currencies. These hyperinflation notes are now widely collected as historical artifacts of economic collapse. The note was printed domestically by Fidelity Printers and Refiners in Harare. The signature of Dr. Gideon Gono, who served as Governor from 2003 to 2013, appears on all notes from this era.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": "AA0898338",
    "serial_prefix": "AA",
    "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": 0.95,
      "series_year": 1.0,
      "issue_year": 1.0,
      "issuer": 1.0,
      "signatures": 0.95,
      "printer": 0.95,
      "material": 0.95,
      "dimensions_mm": 0.9,
      "watermark": 0.9,
      "portrait_subject": 0.85,
      "reverse_subject": 0.95,
      "pick_number": 1.0,
      "serial_number": 1.0,
      "front_description": 0.9,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.95
    },
    "overall_confidence": 0.95,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWL", "denomination": "10000000000000", "series_year": "2008", "series_name": "Third Dollar hyperinflation series", "series_range": "2008\u20132009", "issue_year": "2008", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "2009-04-12", "predecessor_currency": "Second Zimbabwean Dollar", "successor_currency": "Multi-currency system (USD, ZAR, etc.)", "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: Dr. G. Gono", "printer": "Fidelity Printers and Refiners (Harare)", "engraver": null, "material": "paper", "dimensions_mm": "147x73", "watermark": "Zimbabwe Bird in clear field at right", "security_features": "thread, microprint, latent_image, intaglio", "color_palette": "#d4c9a8,#9b8ec9,#1a1a1a", "portrait_subject": null, "reverse_subject": "Balancing Rocks formation", "themes": "agriculture, wildlife, indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-85", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Agricultural and wildlife imagery representing Zimbabwe's economy: at left, a traditional fish trap (chirundu) used in subsistence fishing along rivers such as the Zambezi; at right, an African buffalo (Syncerus caffer), one of Africa's Big Five game animals, standing in grassland. These motifs symbolize Zimbabwe's reliance on both agriculture and natural resources during the period of economic crisis and hyperinflation that saw the Reserve Bank issue banknotes reaching into the trillions of dollars.", "back_description": "Balancing Rocks formation (also known as the Balancing Stones or Chiremba Balancing Rocks), one of Zimbabwe's most iconic natural landmarks found in Epworth and Matobo Hills. These granite formations are a national symbol appearing on Zimbabwe's currency and coat of arms, representing stability and endurance. The rocks are a product of millions of years of erosion and have cultural significance to the indigenous Shona people, also serving as a key tourist attraction and symbol of Zimbabwe's geological heritage.", "historical_notes": "This 10 trillion dollar note was issued in 2008 during the catastrophic Zimbabwean hyperinflation (2007\u20132009), when inflation reached an estimated 89.7 sextillion percent per month by mid-November 2008. The Reserve Bank of Zimbabwe, under Governor Gideon Gono, issued increasingly large denominations culminating in the 100 trillion dollar note in 2009. The Third Zimbabwean Dollar (ZWL, code 932) was introduced on August 1, 2008, at a rate of 10 billion Second Dollars to 1 Third Dollar. Despite redenominations, hyperinflation continued unabated, driven by land reform policies, loss of agricultural production, government deficit spending, and loss of confidence. The currency was officially demonetized on April 12, 2009, when Zimbabwe adopted a multi-currency system using primarily USD, South African rand, and other stable foreign currencies. These hyperinflation notes are now widely collected as historical artifacts of economic collapse. The note was printed domestically by Fidelity Printers and Refiners in Harare. The signature of Dr. Gideon Gono, who served as Governor from 2003 to 2013, appears on all notes from this era.", "language_script": "Latin", "languages": "en", "serial_number": "AA0898338", "serial_prefix": "AA", "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": 0.95, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.95, "printer": 0.95, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.9, "portrait_subject": 0.85, "reverse_subject": 0.95, "pick_number": 1.0, "serial_number": 1.0, "front_description": 0.9, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.95}, "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": 0.95, "printer": 0.95, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.9, "portrait_subject": 0.85, "reverse_subject": 0.95, "pick_number": 1.0, "serial_number": 1.0, "front_description": 0.9, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.95}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:51:52
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWD",
    "denomination": "10000000000",
    "series_year": "2008",
    "series_name": "Hyperinflation series",
    "series_range": "2008–2009",
    "issue_year": "2008",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "2009-04-12",
    "predecessor_currency": "Third Zimbabwean dollar (revalued)",
    "successor_currency": "Multi-currency regime (USD, ZAR, etc.)",

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: Dr. G. Gono",
    "printer": "Giesecke+Devrient",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "145x70",
    "watermark": "Zimbabwe Bird in clear field",
    "security_features": "thread, microprint, intaglio, latent_image",
    "color_palette": "#f5deb3,#9370db,#1a1a1a",

    "portrait_subject": null,
    "reverse_subject": "Balancing Rocks (Epworth or Matopos formation)",
    "themes": "agriculture,industry",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-85",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Agricultural and industrial scenes representing Zimbabwe's economy: left panel shows harvesting of crops (likely cotton or tobacco) with basket, right panel depicts a weaver or craftsperson working at a loom or traditional craft station. These motifs symbolize the agricultural base and artisan industry that were central to Zimbabwe's economy before the hyperinflation crisis. The imagery reflects the government's attempt to maintain normalcy and economic optimism during the period of catastrophic currency collapse.",

    "back_description": "Balancing Rocks (also known as balanced rocks or kopjes), one of Zimbabwe's most iconic natural geological formations found at sites including Epworth near Harare and the Matopos Hills. These precariously stacked granite boulders are a symbol of Zimbabwe's unique landscape and have appeared on Zimbabwean currency since the Rhodesian era. The formation represents natural balance and stability—an ironic symbol given the hyperinflationary context of this note's issuance.",

    "historical_notes": "This 10 billion dollar note was issued in 2008 during Zimbabwe's catastrophic hyperinflation period, one of the worst currency collapses in recorded history. The Reserve Bank of Zimbabwe, under Governor Gideon Gono (who served 2003–2013), issued increasingly large denominations as inflation spiraled out of control, reaching an estimated 89.7 sextillion percent month-on-month by mid-November 2008. The note is dated 'HARARE 2008' on the back. This particular denomination represents the third redenomination (the second dollar, ZWD): 1 new dollar = 10 billion old dollars. The currency was eventually abandoned in April 2009 when Zimbabwe adopted a multi-currency system using the US dollar, South African rand, and other foreign currencies. The serial prefix 'AA' indicates an early print run within this denomination. Despite the astronomical face value, these notes had virtually no purchasing power even when issued—by late 2008, this note might have bought a loaf of bread or a few eggs. Today these hyperinflation notes are widely collected as historical artifacts documenting economic collapse. Dr. Gideon Gono's signature appears on all notes from this era.",

    "language_script": "Latin",
    "languages": "en",

    "serial_number": "AA42890061",
    "serial_prefix": "AA",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "UNC",
    "condition_notes": "Appears uncirculated with crisp paper and sharp corners, typical of notes that circulated minimally due to rapid currency devaluation.",

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

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

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWD", "denomination": "10000000000", "series_year": "2008", "series_name": "Hyperinflation series", "series_range": "2008\u20132009", "issue_year": "2008", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "2009-04-12", "predecessor_currency": "Third Zimbabwean dollar (revalued)", "successor_currency": "Multi-currency regime (USD, ZAR, etc.)", "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: Dr. G. Gono", "printer": "Giesecke+Devrient", "engraver": null, "material": "paper", "dimensions_mm": "145x70", "watermark": "Zimbabwe Bird in clear field", "security_features": "thread, microprint, intaglio, latent_image", "color_palette": "#f5deb3,#9370db,#1a1a1a", "portrait_subject": null, "reverse_subject": "Balancing Rocks (Epworth or Matopos formation)", "themes": "agriculture,industry", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-85", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Agricultural and industrial scenes representing Zimbabwe's economy: left panel shows harvesting of crops (likely cotton or tobacco) with basket, right panel depicts a weaver or craftsperson working at a loom or traditional craft station. These motifs symbolize the agricultural base and artisan industry that were central to Zimbabwe's economy before the hyperinflation crisis. The imagery reflects the government's attempt to maintain normalcy and economic optimism during the period of catastrophic currency collapse.", "back_description": "Balancing Rocks (also known as balanced rocks or kopjes), one of Zimbabwe's most iconic natural geological formations found at sites including Epworth near Harare and the Matopos Hills. These precariously stacked granite boulders are a symbol of Zimbabwe's unique landscape and have appeared on Zimbabwean currency since the Rhodesian era. The formation represents natural balance and stability\u2014an ironic symbol given the hyperinflationary context of this note's issuance.", "historical_notes": "This 10 billion dollar note was issued in 2008 during Zimbabwe's catastrophic hyperinflation period, one of the worst currency collapses in recorded history. The Reserve Bank of Zimbabwe, under Governor Gideon Gono (who served 2003\u20132013), issued increasingly large denominations as inflation spiraled out of control, reaching an estimated 89.7 sextillion percent month-on-month by mid-November 2008. The note is dated 'HARARE 2008' on the back. This particular denomination represents the third redenomination (the second dollar, ZWD): 1 new dollar = 10 billion old dollars. The currency was eventually abandoned in April 2009 when Zimbabwe adopted a multi-currency system using the US dollar, South African rand, and other foreign currencies. The serial prefix 'AA' indicates an early print run within this denomination. Despite the astronomical face value, these notes had virtually no purchasing power even when issued\u2014by late 2008, this note might have bought a loaf of bread or a few eggs. Today these hyperinflation notes are widely collected as historical artifacts documenting economic collapse. Dr. Gideon Gono's signature appears on all notes from this era.", "language_script": "Latin", "languages": "en", "serial_number": "AA42890061", "serial_prefix": "AA", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Appears uncirculated with crisp paper and sharp corners, typical of notes that circulated minimally due to rapid currency devaluation.", "estimated_value_low": 3, "estimated_value_high": 8, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 0.98, "issue_year": 0.98, "issuer": 1.0, "signatures": 0.95, "printer": 0.85, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 0.9, "pick_number": 0.98, "serial_number": 1.0, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.9}, "overall_confidence": 0.93, "flags": []}

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


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:52:11
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "Zimbabwe Dollar (fourth dollar, ZWL)",
    "denomination": "50 Dollars",
    "series_year": "2020",
    "series_name": "2019-2020 bearer cheque series",
    "series_range": "2019–2020",
    "issue_year": "2020",
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": "2020-06-24",
    "predecessor_currency": "RTGS Dollar",
    "successor_currency": null,

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: signature visible but name illegible",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "150x75",
    "watermark": "Zimbabwe Bird in clear field",
    "security_features": "thread,microprint,intaglio,latent_image",
    "color_palette": "#d4af80,#8b4513,#f5deb3",

    "portrait_subject": null,
    "reverse_subject": "Balancing Rocks formation",
    "themes": "architecture,wildlife,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,

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

    "front_description": "The Reserve Bank of Zimbabwe headquarters building in Harare, a modernist high-rise tower that serves as the central banking authority for Zimbabwe. The building features distinctive vertical architectural elements and represents the nation's financial infrastructure. The front also displays the denomination '10,000,000,000,000' (10 trillion) as an overprint, reflecting the hyperinflationary period. The Zimbabwe Bird, a national symbol derived from soapstone sculptures found at Great Zimbabwe, appears as a watermark and decorative element.",
    "back_description": "Balancing Rocks (Chiremba Balancing Rocks), one of Zimbabwe's most iconic geological formations located near Harare and Epworth. These naturally balanced granite boulders have become a symbol of Zimbabwe, representing stability and balance, and appear on the national currency and coat of arms. The formation consists of several large boulders precariously balanced on top of each other, created by erosion over millions of years. The back also features traditional Zimbabwean basket-weave patterns and the Zimbabwe Bird national emblem. The date 'HARARE 2020' is printed at the lower left.",
    "historical_notes": "This note is from Zimbabwe's 2019–2020 series of bearer cheques/bond notes, issued during a period of renewed currency instability. The front bears a '10,000,000,000,000' (10 trillion) overprint, though the actual denomination is 50 dollars as printed on the back. This reflects Zimbabwe's complex monetary history: after the catastrophic hyperinflation of 2008–2009 (which produced the famous 100 trillion dollar notes), Zimbabwe abandoned its currency and used foreign currencies (primarily USD) from 2009–2019. In 2019, the RTGS Dollar was introduced, followed by the reintroduction of the Zimbabwe Dollar (fourth dollar, ZWL) in June 2019. This 2020 series represented a brief attempt to maintain a domestic currency, but by June 24, 2020, the notes were effectively withdrawn from active circulation as the country continued to struggle with inflation and currency instability. The overprint of '10 trillion' on a 50 dollar note may indicate an emergency revaluation or represent a transitional issue. The Reserve Bank of Zimbabwe building and Balancing Rocks are consistent iconography across multiple Zimbabwean currency series, symbolizing institutional authority and national identity.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": null,
    "serial_prefix": null,
    "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": 0.9,
      "series_name": 0.85,
      "series_year": 0.95,
      "issue_year": 0.95,
      "issuer": 1.0,
      "signatures": 0.5,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.85,
      "watermark": 0.9,
      "portrait_subject": 1.0,
      "reverse_subject": 0.95,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.9,
      "back_description": 0.95,
      "historical_notes": 0.85,
      "condition_grade": 0.9
    },
    "overall_confidence": 0.85,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "Zimbabwe Dollar (fourth dollar, ZWL)", "denomination": "50 Dollars", "series_year": "2020", "series_name": "2019-2020 bearer cheque series", "series_range": "2019\u20132020", "issue_year": "2020", "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": "2020-06-24", "predecessor_currency": "RTGS Dollar", "successor_currency": null, "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: signature visible but name illegible", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "150x75", "watermark": "Zimbabwe Bird in clear field", "security_features": "thread,microprint,intaglio,latent_image", "color_palette": "#d4af80,#8b4513,#f5deb3", "portrait_subject": null, "reverse_subject": "Balancing Rocks formation", "themes": "architecture,wildlife,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "The Reserve Bank of Zimbabwe headquarters building in Harare, a modernist high-rise tower that serves as the central banking authority for Zimbabwe. The building features distinctive vertical architectural elements and represents the nation's financial infrastructure. The front also displays the denomination '10,000,000,000,000' (10 trillion) as an overprint, reflecting the hyperinflationary period. The Zimbabwe Bird, a national symbol derived from soapstone sculptures found at Great Zimbabwe, appears as a watermark and decorative element.", "back_description": "Balancing Rocks (Chiremba Balancing Rocks), one of Zimbabwe's most iconic geological formations located near Harare and Epworth. These naturally balanced granite boulders have become a symbol of Zimbabwe, representing stability and balance, and appear on the national currency and coat of arms. The formation consists of several large boulders precariously balanced on top of each other, created by erosion over millions of years. The back also features traditional Zimbabwean basket-weave patterns and the Zimbabwe Bird national emblem. The date 'HARARE 2020' is printed at the lower left.", "historical_notes": "This note is from Zimbabwe's 2019\u20132020 series of bearer cheques/bond notes, issued during a period of renewed currency instability. The front bears a '10,000,000,000,000' (10 trillion) overprint, though the actual denomination is 50 dollars as printed on the back. This reflects Zimbabwe's complex monetary history: after the catastrophic hyperinflation of 2008\u20132009 (which produced the famous 100 trillion dollar notes), Zimbabwe abandoned its currency and used foreign currencies (primarily USD) from 2009\u20132019. In 2019, the RTGS Dollar was introduced, followed by the reintroduction of the Zimbabwe Dollar (fourth dollar, ZWL) in June 2019. This 2020 series represented a brief attempt to maintain a domestic currency, but by June 24, 2020, the notes were effectively withdrawn from active circulation as the country continued to struggle with inflation and currency instability. The overprint of '10 trillion' on a 50 dollar note may indicate an emergency revaluation or represent a transitional issue. The Reserve Bank of Zimbabwe building and Balancing Rocks are consistent iconography across multiple Zimbabwean currency series, symbolizing institutional authority and national identity.", "language_script": "Latin", "languages": "en", "serial_number": null, "serial_prefix": null, "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": 0.9, "series_name": 0.85, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.5, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.9, "back_description": 0.95, "historical_notes": 0.85, "condition_grade": 0.9}, "overall_confidence": 0.85, "flags": ["mismatched_pair"]}

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


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:52:11
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWD",
    "denomination": "10000000000000",
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "2009",
    "predecessor_currency": "Rhodesian dollar",
    "successor_currency": "Zimbabwe dollar (fourth)",

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "148x74",
    "watermark": "Zimbabwe Bird",
    "security_features": "thread,microprint,intaglio",
    "color_palette": "#8b9d7a,#c4b896,#5a6b52",

    "portrait_subject": null,
    "reverse_subject": "Reserve Bank of Zimbabwe headquarters and Great Zimbabwe ruins",
    "themes": "architecture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-88",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "The Reserve Bank of Zimbabwe headquarters building in Harare, a modern high-rise tower that serves as the central bank's main office, alongside the iconic Conical Tower of Great Zimbabwe, a UNESCO World Heritage Site representing the medieval Shona civilization that flourished from the 11th to 15th centuries. Great Zimbabwe is the largest ancient stone structure in sub-Saharan Africa south of the Sahara and gives the country its name.",
    "back_description": "The Balancing Rocks of Epworth near Harare, a distinctive natural rock formation that has become a national symbol of Zimbabwe, representing the delicate balance needed in environmental and economic matters. These granite formations were featured on the Zimbabwe Bird emblem and appear on multiple banknote series.",
    "historical_notes": "This 10 trillion dollar note was issued during Zimbabwe's hyperinflation crisis (2007-2009), one of the worst cases of hyperinflation in modern history. At its peak in November 2008, inflation reached an estimated 79.6 billion percent month-on-month. The Zimbabwe dollar was effectively abandoned in April 2009 when the government allowed foreign currencies to be used. This third dollar series (ZWR, redenominated 2008) included denominations up to 100 trillion dollars. These notes are now popular collector's items. IMPORTANT: The two images provided appear to be MISMATCHED - the front shows a 10 trillion dollar note from the third dollar hyperinflation series (2008-2009), while the back shows a 50 dollar note from the fourth dollar series issued in 2020, featuring completely different design elements and denominations.",
    "language_script": "Latin",
    "languages": "en",

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

    "condition_grade": "XF",
    "condition_notes": "Light handling marks, minor edge wear on left side of front image",

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

    "field_confidence": {
      "country": 0.99,
      "currency": 0.95,
      "denomination": 0.95,
      "series_name": 0.3,
      "series_year": 0.3,
      "issue_year": 0.4,
      "issuer": 0.99,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.7,
      "watermark": 0.75,
      "portrait_subject": 0.0,
      "reverse_subject": 0.85,
      "pick_number": 0.75,
      "serial_number": 0.0,
      "front_description": 0.85,
      "back_description": 0.85,
      "historical_notes": 0.9,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.45,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWD", "denomination": "10000000000000", "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "2009", "predecessor_currency": "Rhodesian dollar", "successor_currency": "Zimbabwe dollar (fourth)", "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "148x74", "watermark": "Zimbabwe Bird", "security_features": "thread,microprint,intaglio", "color_palette": "#8b9d7a,#c4b896,#5a6b52", "portrait_subject": null, "reverse_subject": "Reserve Bank of Zimbabwe headquarters and Great Zimbabwe ruins", "themes": "architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-88", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The Reserve Bank of Zimbabwe headquarters building in Harare, a modern high-rise tower that serves as the central bank's main office, alongside the iconic Conical Tower of Great Zimbabwe, a UNESCO World Heritage Site representing the medieval Shona civilization that flourished from the 11th to 15th centuries. Great Zimbabwe is the largest ancient stone structure in sub-Saharan Africa south of the Sahara and gives the country its name.", "back_description": "The Balancing Rocks of Epworth near Harare, a distinctive natural rock formation that has become a national symbol of Zimbabwe, representing the delicate balance needed in environmental and economic matters. These granite formations were featured on the Zimbabwe Bird emblem and appear on multiple banknote series.", "historical_notes": "This 10 trillion dollar note was issued during Zimbabwe's hyperinflation crisis (2007-2009), one of the worst cases of hyperinflation in modern history. At its peak in November 2008, inflation reached an estimated 79.6 billion percent month-on-month. The Zimbabwe dollar was effectively abandoned in April 2009 when the government allowed foreign currencies to be used. This third dollar series (ZWR, redenominated 2008) included denominations up to 100 trillion dollars. These notes are now popular collector's items. IMPORTANT: The two images provided appear to be MISMATCHED - the front shows a 10 trillion dollar note from the third dollar hyperinflation series (2008-2009), while the back shows a 50 dollar note from the fourth dollar series issued in 2020, featuring completely different design elements and denominations.", "language_script": "Latin", "languages": "en", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "XF", "condition_notes": "Light handling marks, minor edge wear on left side of front image", "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 0.99, "currency": 0.95, "denomination": 0.95, "series_name": 0.3, "series_year": 0.3, "issue_year": 0.4, "issuer": 0.99, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.7, "watermark": 0.75, "portrait_subject": 0.0, "reverse_subject": 0.85, "pick_number": 0.75, "serial_number": 0.0, "front_description": 0.85, "back_description": 0.85, "historical_notes": 0.9, "condition_grade": 0.8}, "overall_confidence": 0.45, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.99, "currency": 0.95, "denomination": 0.95, "series_name": 0.3, "series_year": 0.3, "issue_year": 0.4, "issuer": 0.99, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.7, "watermark": 0.75, "portrait_subject": 0.0, "reverse_subject": 0.85, "pick_number": 0.75, "serial_number": 0.0, "front_description": 0.85, "back_description": 0.85, "historical_notes": 0.9, "condition_grade": 0.8}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:52:32
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWD",
    "denomination": "50 Dollars (front) / 100 Dollars (back)",
    "series_year": "2006",
    "series_name": "Bearer Cheque series",
    "series_range": "2006–2008",
    "issue_year": "2006",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "2009",
    "predecessor_currency": "Zimbabwean Dollar (first)",
    "successor_currency": "Zimbabwean Dollar (third redenomination, ZWL)",

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": null,
    "watermark": "Zimbabwe Bird in clear field at left",
    "security_features": "watermark,microprint,intaglio,see_through_register",
    "color_palette": "#d4a574,#8b4513,#f5deb3",

    "portrait_subject": null,
    "reverse_subject": "Baobab tree and rural landscape with traditional granaries",
    "themes": "wildlife,agriculture,indigenous_culture,architecture",
    "commemorative": false,
    "commemorative_occasion": null,

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

    "front_description": "Family scene depicting traditional Zimbabwean life with mother and child in rural setting. This note belongs to the hyperinflation-era bearer cheque series issued by the Reserve Bank of Zimbabwe during the economic crisis of the mid-2000s when inflation rendered conventional currency denominations obsolete almost immediately upon issue.",
    "back_description": "Baobab tree (Adansonia digitata) in African savanna landscape with traditional grain storage structures (granaries) visible in the background. The baobab, known as the 'tree of life,' is an iconic symbol of Zimbabwe and southern Africa, and the scene represents the country's agricultural heritage and rural life. The traditional thatched granaries reflect indigenous Shona architectural practices for food storage.",
    "historical_notes": "This is a mismatched pair: the front is a 50 Dollars note (serial AG8793015) and the back is a 100 Dollars note (serial AD5829361), both from Zimbabwe's hyperinflation period (2006–2008). During this era, the Reserve Bank of Zimbabwe issued 'bearer cheques' and 'agro-cheques' as emergency currency as hyperinflation spiraled out of control, eventually reaching an estimated peak of 89.7 sextillion percent year-on-year in November 2008. The denomination mismatch suggests these images are from separate notes rather than front/back of the same specimen. The Zimbabwe Dollar was eventually abandoned in 2009 in favor of foreign currencies including the US Dollar and South African Rand. The serial prefixes (AG, AD) indicate different print runs. The Zimbabwe Bird watermark is a national symbol derived from soapstone sculptures found at Great Zimbabwe ruins.",
    "language_script": "Latin",
    "languages": "en",

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

    "condition_grade": "VF",
    "condition_notes": "Note shows circulation wear, minor soiling, and handling marks consistent with use during hyperinflation period when notes circulated briefly before denominations became obsolete",

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

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

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWD", "denomination": "50 Dollars (front) / 100 Dollars (back)", "series_year": "2006", "series_name": "Bearer Cheque series", "series_range": "2006\u20132008", "issue_year": "2006", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "2009", "predecessor_currency": "Zimbabwean Dollar (first)", "successor_currency": "Zimbabwean Dollar (third redenomination, ZWL)", "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": "Zimbabwe Bird in clear field at left", "security_features": "watermark,microprint,intaglio,see_through_register", "color_palette": "#d4a574,#8b4513,#f5deb3", "portrait_subject": null, "reverse_subject": "Baobab tree and rural landscape with traditional granaries", "themes": "wildlife,agriculture,indigenous_culture,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "Family scene depicting traditional Zimbabwean life with mother and child in rural setting. This note belongs to the hyperinflation-era bearer cheque series issued by the Reserve Bank of Zimbabwe during the economic crisis of the mid-2000s when inflation rendered conventional currency denominations obsolete almost immediately upon issue.", "back_description": "Baobab tree (Adansonia digitata) in African savanna landscape with traditional grain storage structures (granaries) visible in the background. The baobab, known as the 'tree of life,' is an iconic symbol of Zimbabwe and southern Africa, and the scene represents the country's agricultural heritage and rural life. The traditional thatched granaries reflect indigenous Shona architectural practices for food storage.", "historical_notes": "This is a mismatched pair: the front is a 50 Dollars note (serial AG8793015) and the back is a 100 Dollars note (serial AD5829361), both from Zimbabwe's hyperinflation period (2006\u20132008). During this era, the Reserve Bank of Zimbabwe issued 'bearer cheques' and 'agro-cheques' as emergency currency as hyperinflation spiraled out of control, eventually reaching an estimated peak of 89.7 sextillion percent year-on-year in November 2008. The denomination mismatch suggests these images are from separate notes rather than front/back of the same specimen. The Zimbabwe Dollar was eventually abandoned in 2009 in favor of foreign currencies including the US Dollar and South African Rand. The serial prefixes (AG, AD) indicate different print runs. The Zimbabwe Bird watermark is a national symbol derived from soapstone sculptures found at Great Zimbabwe ruins.", "language_script": "Latin", "languages": "en", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows circulation wear, minor soiling, and handling marks consistent with use during hyperinflation period when notes circulated briefly before denominations became obsolete", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.9, "series_year": 0.9, "issue_year": 0.9, "issuer": 1.0, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.95, "portrait_subject": 0.0, "reverse_subject": 0.95, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.85, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.8}, "overall_confidence": 0.5, "flags": ["mismatched_pair"]}

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


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:52:32
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWL",
    "denomination": "50",
    "series_year": "2020",
    "series_name": "Fourth Dollar Series",
    "series_range": "2019–present",
    "issue_year": "2020",
    "era": "1990_present",
    "legal_status": "in_circulation",
    "legal_status_date": null,
    "predecessor_currency": "Bond Notes / RTGS Dollar",
    "successor_currency": null,

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": null,
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "148x73",
    "watermark": "Zimbabwe Bird (soapstone bird emblem)",
    "security_features": "thread,microprint,see_through_register,latent_image",
    "color_palette": "#8B4513,#DEB887,#CD853F",

    "portrait_subject": "Mbuya Nehanda",
    "reverse_subject": null,
    "themes": "military,indigenous_culture,statesman",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-105",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Mbuya Nehanda (c. 1840–1898), born Charwe Nyakasikana, a spirit medium of the Zezuru Shona people and one of the most important figures in Zimbabwean history. She was a leader of the First Chimurenga (1896–1897) resistance against British colonialism and was executed by hanging in 1898. Her last words reportedly inspired the Second Chimurenga liberation war. Also depicted is the Heroes' Acre monument in Harare, featuring the bronze statues of the Unknown Soldier and freedom fighters, designed by North Korean architects and unveiled in 1981 to honour Zimbabwe's liberation war heroes.",
    "back_description": null,
    "historical_notes": "MISMATCHED PAIR WARNING: The front image shows a 50 Dollar note while the back image shows a 100 Dollar note with serial AD5829361 - these are NOT the same banknote. The 50 Dollar note is part of Zimbabwe's fourth dollar series introduced in 2019 after years of hyperinflation that saw the original Zimbabwe dollar abandoned in 2009. The new series was reintroduced to replace bond notes and the RTGS dollar system. The back of the 100 Dollar note depicts a baobab tree and the Great Zimbabwe ruins, the medieval stone city that gave the country its name.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": "AG8793015",
    "serial_prefix": "AG",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "AU",
    "condition_notes": "Minor handling marks, crisp paper, good colors",

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

    "field_confidence": {
      "country": 0.99,
      "currency": 0.95,
      "denomination": 0.99,
      "series_name": 0.85,
      "series_year": 0.85,
      "issue_year": 0.80,
      "issuer": 0.99,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.75,
      "watermark": 0.80,
      "portrait_subject": 0.90,
      "reverse_subject": 0.0,
      "pick_number": 0.75,
      "serial_number": 0.99,
      "front_description": 0.88,
      "back_description": 0.0,
      "historical_notes": 0.85,
      "condition_grade": 0.80
    },
    "overall_confidence": 0.45,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWL", "denomination": "50", "series_year": "2020", "series_name": "Fourth Dollar Series", "series_range": "2019\u2013present", "issue_year": "2020", "era": "1990_present", "legal_status": "in_circulation", "legal_status_date": null, "predecessor_currency": "Bond Notes / RTGS Dollar", "successor_currency": null, "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "148x73", "watermark": "Zimbabwe Bird (soapstone bird emblem)", "security_features": "thread,microprint,see_through_register,latent_image", "color_palette": "#8B4513,#DEB887,#CD853F", "portrait_subject": "Mbuya Nehanda", "reverse_subject": null, "themes": "military,indigenous_culture,statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-105", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Mbuya Nehanda (c. 1840\u20131898), born Charwe Nyakasikana, a spirit medium of the Zezuru Shona people and one of the most important figures in Zimbabwean history. She was a leader of the First Chimurenga (1896\u20131897) resistance against British colonialism and was executed by hanging in 1898. Her last words reportedly inspired the Second Chimurenga liberation war. Also depicted is the Heroes' Acre monument in Harare, featuring the bronze statues of the Unknown Soldier and freedom fighters, designed by North Korean architects and unveiled in 1981 to honour Zimbabwe's liberation war heroes.", "back_description": null, "historical_notes": "MISMATCHED PAIR WARNING: The front image shows a 50 Dollar note while the back image shows a 100 Dollar note with serial AD5829361 - these are NOT the same banknote. The 50 Dollar note is part of Zimbabwe's fourth dollar series introduced in 2019 after years of hyperinflation that saw the original Zimbabwe dollar abandoned in 2009. The new series was reintroduced to replace bond notes and the RTGS dollar system. The back of the 100 Dollar note depicts a baobab tree and the Great Zimbabwe ruins, the medieval stone city that gave the country its name.", "language_script": "Latin", "languages": "en", "serial_number": "AG8793015", "serial_prefix": "AG", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "AU", "condition_notes": "Minor handling marks, crisp paper, good colors", "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 0.99, "currency": 0.95, "denomination": 0.99, "series_name": 0.85, "series_year": 0.85, "issue_year": 0.8, "issuer": 0.99, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.75, "watermark": 0.8, "portrait_subject": 0.9, "reverse_subject": 0.0, "pick_number": 0.75, "serial_number": 0.99, "front_description": 0.88, "back_description": 0.0, "historical_notes": 0.85, "condition_grade": 0.8}, "overall_confidence": 0.45, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.99, "currency": 0.95, "denomination": 0.99, "series_name": 0.85, "series_year": 0.85, "issue_year": 0.8, "issuer": 0.99, "signatures": 0.0, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.75, "watermark": 0.8, "portrait_subject": 0.9, "reverse_subject": 0.0, "pick_number": 0.75, "serial_number": 0.99, "front_description": 0.88, "back_description": 0.0, "historical_notes": 0.85, "condition_grade": 0.8}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:53:11
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWD",
    "denomination": "50 Billion Dollars",
    "series_year": "2008",
    "series_name": "Third Dollar series",
    "series_range": "2008–2009",
    "issue_year": "2008",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "2009-04-12",
    "predecessor_currency": "Second Zimbabwe Dollar",
    "successor_currency": "Fourth Zimbabwe Dollar",

    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": "Governor: Gideon Gono",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "147x73",
    "watermark": "Zimbabwe Bird in clear field",
    "security_features": "thread, microprint, latent_image",
    "color_palette": "#d4c5a0,#c89b8f,#8b7355",

    "portrait_subject": null,
    "reverse_subject": "Balancing Rocks formation",
    "themes": "architecture,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "87",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "The Reserve Bank of Zimbabwe headquarters building in Harare at left center, a modernist high-rise structure completed in the 1990s that serves as the central bank's main office. At right, the Chiremba Balancing Rocks, a natural geological formation of precariously balanced granite boulders near Harare that appears on Zimbabwe's currency and serves as a national symbol. The note displays the astronomical denomination of 10 trillion Zimbabwe dollars (10,000,000,000,000), characteristic of the hyperinflationary period.",
    "back_description": "Chiremba Balancing Rocks formation, a stack of naturally balanced granite boulders that has become an iconic symbol of Zimbabwe, representing the nation's geological heritage and serving as a metaphor for balance and stability. This natural stone formation near Harare has appeared on Zimbabwean currency since independence and is one of the country's most recognizable landmarks. The back displays '50 Billion Dollars' and serial number AA9011618.",
    "historical_notes": "This 50 billion dollar note was issued during Zimbabwe's catastrophic hyperinflation crisis of 2008–2009, the second-worst case of hyperinflation in recorded history. The Third Dollar series (ZWD) was introduced in August 2008, redenominating at 10 billion old dollars to 1 new dollar, but inflation continued to spiral out of control. By late 2008, inflation reached an estimated 89.7 sextillion percent month-on-month. The Reserve Bank, under Governor Gideon Gono, issued increasingly higher denominations, ultimately reaching 100 trillion dollars. The currency became practically worthless for daily transactions, leading to its abandonment in April 2009 when Zimbabwe adopted a multi-currency system using primarily the US dollar and South African rand. These hyperinflation-era notes, while once representing enormous face values, are now collected as historical artifacts of economic collapse.",
    "language_script": "Latin",
    "languages": "en",

    "serial_number": "AA9011618",
    "serial_prefix": "AA",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "UNC",
    "condition_notes": "Appears uncirculated with crisp edges and no visible wear",

    "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": 0.85,
      "printer": 0.3,
      "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": 0.9,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.92,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWD", "denomination": "50 Billion Dollars", "series_year": "2008", "series_name": "Third Dollar series", "series_range": "2008\u20132009", "issue_year": "2008", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "2009-04-12", "predecessor_currency": "Second Zimbabwe Dollar", "successor_currency": "Fourth Zimbabwe Dollar", "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": "Governor: Gideon Gono", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "147x73", "watermark": "Zimbabwe Bird in clear field", "security_features": "thread, microprint, latent_image", "color_palette": "#d4c5a0,#c89b8f,#8b7355", "portrait_subject": null, "reverse_subject": "Balancing Rocks formation", "themes": "architecture,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "87", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The Reserve Bank of Zimbabwe headquarters building in Harare at left center, a modernist high-rise structure completed in the 1990s that serves as the central bank's main office. At right, the Chiremba Balancing Rocks, a natural geological formation of precariously balanced granite boulders near Harare that appears on Zimbabwe's currency and serves as a national symbol. The note displays the astronomical denomination of 10 trillion Zimbabwe dollars (10,000,000,000,000), characteristic of the hyperinflationary period.", "back_description": "Chiremba Balancing Rocks formation, a stack of naturally balanced granite boulders that has become an iconic symbol of Zimbabwe, representing the nation's geological heritage and serving as a metaphor for balance and stability. This natural stone formation near Harare has appeared on Zimbabwean currency since independence and is one of the country's most recognizable landmarks. The back displays '50 Billion Dollars' and serial number AA9011618.", "historical_notes": "This 50 billion dollar note was issued during Zimbabwe's catastrophic hyperinflation crisis of 2008\u20132009, the second-worst case of hyperinflation in recorded history. The Third Dollar series (ZWD) was introduced in August 2008, redenominating at 10 billion old dollars to 1 new dollar, but inflation continued to spiral out of control. By late 2008, inflation reached an estimated 89.7 sextillion percent month-on-month. The Reserve Bank, under Governor Gideon Gono, issued increasingly higher denominations, ultimately reaching 100 trillion dollars. The currency became practically worthless for daily transactions, leading to its abandonment in April 2009 when Zimbabwe adopted a multi-currency system using primarily the US dollar and South African rand. These hyperinflation-era notes, while once representing enormous face values, are now collected as historical artifacts of economic collapse.", "language_script": "Latin", "languages": "en", "serial_number": "AA9011618", "serial_prefix": "AA", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Appears uncirculated with crisp edges and no visible wear", "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": 0.85, "printer": 0.3, "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": 0.9, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.85}, "overall_confidence": 0.92, "flags": []}

field_confidence:
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provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:53:26
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Zimbabwe",
    "currency": "ZWD",
    "denomination": "50000000000",
    "series_year": "2008",
    "series_name": "Fourth Dollar hyperinflation series",
    "series_range": "2008",
    "issue_year": "2008",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "2009-04-12",
    "predecessor_currency": "Third Zimbabwe Dollar",
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    "issuer": "Reserve Bank of Zimbabwe",
    "issuer_native": null,
    "signatures": null,
    "printer": "Fidelity Printers and Refiners",
    "engraver": null,

    "material": "paper",
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    "security_features": "thread,intaglio,microprint",
    "color_palette": "#d2691e,#f5deb3,#8b4513",

    "portrait_subject": "Zimbabwe Bird soapstone sculpture",
    "reverse_subject": "Rhinoceros (White rhinoceros mother and calf)",
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    "commemorative": false,
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    "pick_number": "83",
    "krause_id": null,
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    "rarity_tier": "common",

    "front_description": "The Zimbabwe Bird, one of eight soapstone bird sculptures discovered at the Great Zimbabwe ruins, a UNESCO World Heritage site and the country's namesake. These sculptures date from the 13th–15th century Shona civilization and have become the national emblem of Zimbabwe, appearing on the flag and coat of arms. The front also depicts Chiremba Balancing Rocks, a distinctive granite rock formation near Harare. This note represents 50 billion Zimbabwe dollars, issued during the peak of hyperinflation in 2008.",

    "back_description": "White rhinoceros (Ceratotherium simum) mother and calf, native to southern Africa. Zimbabwe's wildlife has been central to its tourism economy and conservation efforts, with both black and white rhinoceros populations protected in national parks. The wildlife imagery on these hyperinflation-era notes reflected Zimbabwe's natural heritage even as the economy collapsed, with inflation reaching 89.7 sextillion percent month-on-month by November 2008.",

    "historical_notes": "This 50 billion dollar note belongs to the Fourth Zimbabwe Dollar (ZWD) series issued in 2008 during the worst hyperinflation in modern history. The Reserve Bank of Zimbabwe issued progressively higher denominations as the currency collapsed, reaching 100 trillion dollars by January 2009. The Fourth Dollar was introduced on August 1, 2008, by removing 10 zeros from the Third Dollar. By April 2009, the Zimbabwe dollar was abandoned entirely in favor of a multi-currency system dominated by the US dollar and South African rand. These hyperinflation notes are now demonetized and widely collected as historical artifacts of economic catastrophe. The serial number AD 244004634 A indicates this was printed by Fidelity Printers and Refiners, Zimbabwe's domestic security printer.",

    "language_script": "Latin",
    "languages": "en",

    "serial_number": "AD 244004634 A",
    "serial_prefix": "AD",
    "serial_suffix": "A",
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Moderate circulation wear visible with some creasing and light soiling",

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

    "field_confidence": {
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      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.95,
      "series_year": 0.95,
      "issue_year": 0.95,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.9,
      "material": 0.95,
      "dimensions_mm": 0.85,
      "watermark": 0.9,
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      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.93,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Zimbabwe", "currency": "ZWD", "denomination": "50000000000", "series_year": "2008", "series_name": "Fourth Dollar hyperinflation series", "series_range": "2008", "issue_year": "2008", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "2009-04-12", "predecessor_currency": "Third Zimbabwe Dollar", "successor_currency": "Multi-currency system (USD, ZAR, etc.)", "issuer": "Reserve Bank of Zimbabwe", "issuer_native": null, "signatures": null, "printer": "Fidelity Printers and Refiners", "engraver": null, "material": "paper", "dimensions_mm": "145x72", "watermark": "Zimbabwe bird statue in clear field", "security_features": "thread,intaglio,microprint", "color_palette": "#d2691e,#f5deb3,#8b4513", "portrait_subject": "Zimbabwe Bird soapstone sculpture", "reverse_subject": "Rhinoceros (White rhinoceros mother and calf)", "themes": "architecture,wildlife,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": "83", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The Zimbabwe Bird, one of eight soapstone bird sculptures discovered at the Great Zimbabwe ruins, a UNESCO World Heritage site and the country's namesake. These sculptures date from the 13th\u201315th century Shona civilization and have become the national emblem of Zimbabwe, appearing on the flag and coat of arms. The front also depicts Chiremba Balancing Rocks, a distinctive granite rock formation near Harare. This note represents 50 billion Zimbabwe dollars, issued during the peak of hyperinflation in 2008.", "back_description": "White rhinoceros (Ceratotherium simum) mother and calf, native to southern Africa. Zimbabwe's wildlife has been central to its tourism economy and conservation efforts, with both black and white rhinoceros populations protected in national parks. The wildlife imagery on these hyperinflation-era notes reflected Zimbabwe's natural heritage even as the economy collapsed, with inflation reaching 89.7 sextillion percent month-on-month by November 2008.", "historical_notes": "This 50 billion dollar note belongs to the Fourth Zimbabwe Dollar (ZWD) series issued in 2008 during the worst hyperinflation in modern history. The Reserve Bank of Zimbabwe issued progressively higher denominations as the currency collapsed, reaching 100 trillion dollars by January 2009. The Fourth Dollar was introduced on August 1, 2008, by removing 10 zeros from the Third Dollar. By April 2009, the Zimbabwe dollar was abandoned entirely in favor of a multi-currency system dominated by the US dollar and South African rand. These hyperinflation notes are now demonetized and widely collected as historical artifacts of economic catastrophe. The serial number AD 244004634 A indicates this was printed by Fidelity Printers and Refiners, Zimbabwe's domestic security printer.", "language_script": "Latin", "languages": "en", "serial_number": "AD 244004634 A", "serial_prefix": "AD", "serial_suffix": "A", "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Moderate circulation wear visible with some creasing and light 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": 0.95, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.0, "printer": 0.9, "material": 0.95, "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": 0.95, "condition_grade": 0.85}, "overall_confidence": 0.93, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.0, "printer": 0.9, "material": 0.95, "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": 0.95, "condition_grade": 0.85}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:53:26
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
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    "engraver": null,

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    "back_description": "South African 10 Rand note featuring a white rhinoceros (Ceratotherium simum) mother and calf, part of the 'Big Five' wildlife series introduced in 2012. The rhino represents South Africa's wildlife heritage and conservation efforts. Text appears in Afrikaans ('Suid-Afrikaanse Reserwebank') and siSwati ('Libhangesilulu leNingizimu Afrika'), reflecting South Africa's eleven official languages.",

    "historical_notes": "MISMATCHED PAIR: The front image shows a Zimbabwe 50 Billion Dollar note (P-87, 2008 'Third Dollar' hyperinflation series), while the back shows a South African 10 Rand note from the 'Big Five' series introduced in 2012. These are two completely different banknotes from different countries. The Zimbabwe note is from the infamous hyperinflation period when the country printed increasingly astronomical denominations. The South African note is from the current circulation series featuring wildlife. No valid catalogue entry can be created for this mismatched pair.",

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

    "serial_number": "AD 24400463 A",
    "serial_prefix": "AD",
    "serial_suffix": "A",
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    "condition_grade": "VF",
    "condition_notes": "Both notes show moderate circulation wear with visible folds and creases. The Zimbabwe note shows some soiling on the left margin.",

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

    "field_confidence": {
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  }
  ```

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field_confidence:
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provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:53:27
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
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    "back_description": "The back image depicts a Reserve Bank of Zimbabwe 200,000 Dollar bearer cheque issued during Zimbabwe's hyperinflation period, dated 1st July 2007 with expiry 30th June 2008. This bearer cheque was part of the emergency currency series issued by the Reserve Bank of Zimbabwe under Governor Dr. G. Gono during the catastrophic hyperinflation crisis (mid-2000s to 2009) when Zimbabwe's currency collapsed. Bearer cheques functioned as temporary banknotes with expiration dates, issued in rapidly escalating denominations as inflation spiraled. The Zimbabwean Dollar was eventually abandoned in 2009 in favor of foreign currencies.",
    "historical_notes": "CRITICAL FLAG: These are two completely unrelated banknotes from different countries, different currencies, different denominations, and different time periods. The FRONT is a modern South African 10 Rand polymer note from the Mandela series (2012–2018), while the BACK is a Zimbabwean 200,000 Dollar bearer cheque from 2007 during hyperinflation. This is NOT a matched front-and-back pair. They cannot be catalogued as a single note. The images appear to have been mismatched or submitted in error. Each would require separate catalogue entries.",
    "language_script": null,
    "languages": null,
    "serial_number": null,
    "serial_prefix": null,
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    "replacement_indicator": null,
    "condition_grade": "unknown",
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    "estimated_value_low": null,
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    "value_currency": null,
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field_confidence:
[cell repeats an earlier one in this file: 414 characters]


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:53:27
prompt_version: v3-year-reasoning
raw_response:
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    "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": "Nelson Mandela (1918–2013), South Africa's first democratically elected president, anti-apartheid revolutionary, and Nobel Peace Prize laureate. He served as President from 1994 to 1999 and is revered as the father of modern South Africa. The Mandela series of South African banknotes, introduced in 2012, features his portrait on the front of all denominations. A rhinoceros appears in the lower right corner, representing South Africa's 'Big Five' wildlife theme that runs through the series.",
    "back_description": "This is a Zimbabwe 200,000 Dollar Bearer Cheque issued during the hyperinflation crisis. Signed by Dr. Gideon Gono, Governor of the Reserve Bank of Zimbabwe from 2003 to 2013, who presided over the currency during its catastrophic devaluation. The note bears an issue date of 1st July 2007 with an expiration date of 30th June 2008, characteristic of Zimbabwe's bearer cheque emergency currency.",
    "historical_notes": "CRITICAL: These two images are NOT front and back of the same banknote. Image 1 is a South African 10 Rand note from the Mandela series (introduced 2012, P-138), while Image 2 is a Zimbabwean 200,000 Dollar Bearer Cheque from 2007 (P-49). The South African note features Lesetja Kganyago's signature as Governor (appointed 2014). The Zimbabwe bearer cheque was issued during the hyperinflationary period when Zimbabwe's inflation reached astronomical levels, necessitating emergency currency instruments with expiration dates. This cataloguing cannot proceed as a single note.",
    "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 represent 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": 0.95,
      "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": 0.15,
    "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": "Nelson Mandela (1918\u20132013), South Africa's first democratically elected president, anti-apartheid revolutionary, and Nobel Peace Prize laureate. He served as President from 1994 to 1999 and is revered as the father of modern South Africa. The Mandela series of South African banknotes, introduced in 2012, features his portrait on the front of all denominations. A rhinoceros appears in the lower right corner, representing South Africa's 'Big Five' wildlife theme that runs through the series.", "back_description": "This is a Zimbabwe 200,000 Dollar Bearer Cheque issued during the hyperinflation crisis. Signed by Dr. Gideon Gono, Governor of the Reserve Bank of Zimbabwe from 2003 to 2013, who presided over the currency during its catastrophic devaluation. The note bears an issue date of 1st July 2007 with an expiration date of 30th June 2008, characteristic of Zimbabwe's bearer cheque emergency currency.", "historical_notes": "CRITICAL: These two images are NOT front and back of the same banknote. Image 1 is a South African 10 Rand note from the Mandela series (introduced 2012, P-138), while Image 2 is a Zimbabwean 200,000 Dollar Bearer Cheque from 2007 (P-49). The South African note features Lesetja Kganyago's signature as Governor (appointed 2014). The Zimbabwe bearer cheque was issued during the hyperinflationary period when Zimbabwe's inflation reached astronomical levels, necessitating emergency currency instruments with expiration dates. This cataloguing cannot proceed as a single note.", "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 represent 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": 0.95, "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": 0.15, "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": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.98, "condition_grade": 0.0}


