# extraction_runs

provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:05:51
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
    "denomination": "25 Rubles",
    "series_year": "1961",
    "series_name": "State Bank of the USSR Series 1961",
    "series_range": "1961–1991",
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (1947 series)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственный Банк СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "157x67",
    "watermark": "Hammer and sickle pattern in clear field at right",
    "security_features": "microprint,intaglio,watermark",
    "color_palette": "#8b7355,#d4c5a0,#556b2f",

    "portrait_subject": null,
    "reverse_subject": "Vladimir Lenin",
    "themes": "statesman,communist_iconography",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-234a",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "The front of this Soviet 25-ruble note displays the denomination in multiple languages of the Soviet republics, including Russian (Cyrillic 'Двадцать Пять Рублей'), Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kyrgyz, Tajik, Armenian, Turkmen, and Estonian. The multilingual text reflects the multinational character of the USSR, where all fifteen Soviet Socialist Republics were represented on the currency. The note bears the serial number 'ГВ 2223370' in red print, and includes the text 'БИЛЕТ ГОСУДАРСТВЕННОГО БАНКА СССР' (State Bank of the USSR Note) along with 'ПОДДЕЛКА БИЛЕТОВ ГОСУДАРСТВЕННОГО БАНКА СССР ПРЕСЛЕДУЕТСЯ ПО ЗАКОНУ' (Counterfeiting of State Bank notes is punishable by law).",

    "back_description": "Vladimir Ilyich Lenin (1870–1924), founder of the Soviet state and leader of the Bolshevik Revolution of 1917. His portrait appears in left profile within an ornate medallion, accompanied by the State Emblem of the Soviet Union featuring the hammer and sickle surrounded by a wreath of wheat, topped with a red star. Lenin was the most prominent figure on Soviet currency throughout the USSR's existence, symbolizing the communist ideology and the revolutionary transformation of Russia. The text 'БИЛЕТ ГОСУДАРСТВЕННОГО БАНКА СССР' (State Bank of the USSR Note) appears at top, with 'ДВЕСТИ РУБЛЕЙ' (Two Hundred Rubles) prominently displayed, though this is a 25-ruble note on the front—indicating this is a mismatched pair of images showing the back of a different denomination (200 rubles).",

    "historical_notes": "This is part of the 1961 monetary reform series issued by the State Bank of the USSR (Gosbank), which replaced the 1947 series at a rate of 10:1 in an effort to combat inflation and consolidate the Soviet monetary system. The 1961 series remained in circulation until the dissolution of the Soviet Union in 1991. The multilingual denomination text on the front was a distinctive feature of Soviet banknotes, reflecting the fifteen Soviet Socialist Republics and their respective languages. The serial number prefix 'ГВ' is a standard series indicator for Soviet notes. WARNING: The front and back images appear to show different denominations (25 rubles front, 200 rubles back), indicating a mismatched pair. The cataloguing of physical features, Pick number, and descriptions reflects this discrepancy. For the 25-ruble note alone, the correct Pick number is P-234a (issued 1961–1991). The back shown (200 rubles with Lenin) would be P-236 or related.",

    "language_script": "Cyrillic, Latin, Georgian, Armenian",
    "languages": "ru,uk,be,uz,kk,ka,az,lt,mo,lv,ky,tg,hy,tk,et",

    "serial_number": "ГВ 2223370",
    "serial_prefix": "ГВ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note shows visible staining and soiling on left margin of front, with general circulation wear. Corners appear slightly rounded. Paper remains intact without tears.",

    "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": 0.95,
      "issue_year": 0.5,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.9,
      "material": 0.95,
      "dimensions_mm": 0.9,
      "watermark": 0.85,
      "portrait_subject": 0.0,
      "reverse_subject": 1.0,
      "pick_number": 0.9,
      "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", "obscured"]
  }
  ```

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble", "denomination": "25 Rubles", "series_year": "1961", "series_name": "State Bank of the USSR Series 1961", "series_range": "1961\u20131991", "issue_year": null, "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (1947 series)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0411\u0430\u043d\u043a \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "157x67", "watermark": "Hammer and sickle pattern in clear field at right", "security_features": "microprint,intaglio,watermark", "color_palette": "#8b7355,#d4c5a0,#556b2f", "portrait_subject": null, "reverse_subject": "Vladimir Lenin", "themes": "statesman,communist_iconography", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-234a", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The front of this Soviet 25-ruble note displays the denomination in multiple languages of the Soviet republics, including Russian (Cyrillic '\u0414\u0432\u0430\u0434\u0446\u0430\u0442\u044c \u041f\u044f\u0442\u044c \u0420\u0443\u0431\u043b\u0435\u0439'), Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kyrgyz, Tajik, Armenian, Turkmen, and Estonian. The multilingual text reflects the multinational character of the USSR, where all fifteen Soviet Socialist Republics were represented on the currency. The note bears the serial number '\u0413\u0412 2223370' in red print, and includes the text '\u0411\u0418\u041b\u0415\u0422 \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u041e\u0413\u041e \u0411\u0410\u041d\u041a\u0410 \u0421\u0421\u0421\u0420' (State Bank of the USSR Note) along with '\u041f\u041e\u0414\u0414\u0415\u041b\u041a\u0410 \u0411\u0418\u041b\u0415\u0422\u041e\u0412 \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u041e\u0413\u041e \u0411\u0410\u041d\u041a\u0410 \u0421\u0421\u0421\u0420 \u041f\u0420\u0415\u0421\u041b\u0415\u0414\u0423\u0415\u0422\u0421\u042f \u041f\u041e \u0417\u0410\u041a\u041e\u041d\u0423' (Counterfeiting of State Bank notes is punishable by law).", "back_description": "Vladimir Ilyich Lenin (1870\u20131924), founder of the Soviet state and leader of the Bolshevik Revolution of 1917. His portrait appears in left profile within an ornate medallion, accompanied by the State Emblem of the Soviet Union featuring the hammer and sickle surrounded by a wreath of wheat, topped with a red star. Lenin was the most prominent figure on Soviet currency throughout the USSR's existence, symbolizing the communist ideology and the revolutionary transformation of Russia. The text '\u0411\u0418\u041b\u0415\u0422 \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u041e\u0413\u041e \u0411\u0410\u041d\u041a\u0410 \u0421\u0421\u0421\u0420' (State Bank of the USSR Note) appears at top, with '\u0414\u0412\u0415\u0421\u0422\u0418 \u0420\u0423\u0411\u041b\u0415\u0419' (Two Hundred Rubles) prominently displayed, though this is a 25-ruble note on the front\u2014indicating this is a mismatched pair of images showing the back of a different denomination (200 rubles).", "historical_notes": "This is part of the 1961 monetary reform series issued by the State Bank of the USSR (Gosbank), which replaced the 1947 series at a rate of 10:1 in an effort to combat inflation and consolidate the Soviet monetary system. The 1961 series remained in circulation until the dissolution of the Soviet Union in 1991. The multilingual denomination text on the front was a distinctive feature of Soviet banknotes, reflecting the fifteen Soviet Socialist Republics and their respective languages. The serial number prefix '\u0413\u0412' is a standard series indicator for Soviet notes. WARNING: The front and back images appear to show different denominations (25 rubles front, 200 rubles back), indicating a mismatched pair. The cataloguing of physical features, Pick number, and descriptions reflects this discrepancy. For the 25-ruble note alone, the correct Pick number is P-234a (issued 1961\u20131991). The back shown (200 rubles with Lenin) would be P-236 or related.", "language_script": "Cyrillic, Latin, Georgian, Armenian", "languages": "ru,uk,be,uz,kk,ka,az,lt,mo,lv,ky,tg,hy,tk,et", "serial_number": "\u0413\u0412 2223370", "serial_prefix": "\u0413\u0412", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows visible staining and soiling on left margin of front, with general circulation wear. Corners appear slightly rounded. Paper remains intact without tears.", "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": 0.95, "issue_year": 0.5, "issuer": 1.0, "signatures": 0.0, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.85, "portrait_subject": 0.0, "reverse_subject": 1.0, "pick_number": 0.9, "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", "obscured"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 0.95, "issue_year": 0.5, "issuer": 1.0, "signatures": 0.0, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.85, "portrait_subject": 0.0, "reverse_subject": 1.0, "pick_number": 0.9, "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 07:05:51
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": "Soviet Ruble",
    "denomination": null,
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1993",
    "predecessor_currency": null,
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственный Банк СССР",
    "signatures": null,
    "printer": "Goznak",
    "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": "This is a 25 ruble note from the Soviet Union, issued by the State Bank of the USSR. The denomination 'ДВАДЦАТЬ ПЯТЬ РУБЛЕЙ' (Twenty-Five Rubles) appears prominently, with the value repeated in multiple languages of the Soviet republics. The note features characteristic Soviet design elements including the 'СССР' (USSR) designation and anti-counterfeiting warning text. The serial number ГВ 2223370 is printed in red.",
    "back_description": "This is a 200 ruble note from the Soviet Union featuring Vladimir Ilyich Lenin (1870–1924), founder of the Soviet state and leader of the Bolshevik Revolution. The portrait shows Lenin in left-facing profile. The State Emblem of the Soviet Union (hammer and sickle within a globe, surrounded by wheat sheaves and the motto in languages of the Soviet republics) appears at center. Text reads 'БИЛЕТ ГОСУДАРСТВЕННОГО БАНКА СССР' (State Bank of the USSR Note) and 'ДВЕСТИ РУБЛЕЙ' (Two Hundred Rubles).",
    "historical_notes": "MISMATCHED PAIR: The front image shows a 25 ruble note from the 1961 Soviet series (P-234), while the back image shows a 200 ruble note from the 1991-1992 series (P-244). The 25 ruble 1961 series was part of the major currency reform of that year which redenominated the ruble at 10:1. The 200 ruble note was introduced in 1991 during the late Soviet period as inflation began to accelerate. Both denominations were demonetized following the dissolution of the USSR in 1991 and subsequent Russian currency reforms. These are clearly two different banknotes that do not form a front/back pair.",
    "language_script": "Cyrillic",
    "languages": "ru,uk,be,uz,kk,ky,tg,az,lt,lv,et,ka,hy,mo",

    "serial_number": "ГВ 2223370",
    "serial_prefix": "ГВ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VG",
    "condition_notes": "The 25 ruble note shows significant edge damage, staining, and discoloration particularly on the left side. The 200 ruble note shows moderate circulation wear, edge wear, and some soiling.",

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

    "field_confidence": {
      "country": 0.95,
      "currency": 0.98,
      "denomination": 0.0,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 0.98,
      "signatures": 0.0,
      "printer": 0.90,
      "material": 0.95,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.98,
      "reverse_subject": 0.0,
      "pick_number": 0.0,
      "serial_number": 0.95,
      "front_description": 0.90,
      "back_description": 0.92,
      "historical_notes": 0.85,
      "condition_grade": 0.75
    },
    "overall_confidence": 0.35,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": null, "currency": "Soviet Ruble", "denomination": null, "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1993", "predecessor_currency": null, "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0411\u0430\u043d\u043a \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "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": "This is a 25 ruble note from the Soviet Union, issued by the State Bank of the USSR. The denomination '\u0414\u0412\u0410\u0414\u0426\u0410\u0422\u042c \u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Twenty-Five Rubles) appears prominently, with the value repeated in multiple languages of the Soviet republics. The note features characteristic Soviet design elements including the '\u0421\u0421\u0421\u0420' (USSR) designation and anti-counterfeiting warning text. The serial number \u0413\u0412 2223370 is printed in red.", "back_description": "This is a 200 ruble note from the Soviet Union featuring Vladimir Ilyich Lenin (1870\u20131924), founder of the Soviet state and leader of the Bolshevik Revolution. The portrait shows Lenin in left-facing profile. The State Emblem of the Soviet Union (hammer and sickle within a globe, surrounded by wheat sheaves and the motto in languages of the Soviet republics) appears at center. Text reads '\u0411\u0418\u041b\u0415\u0422 \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u041e\u0413\u041e \u0411\u0410\u041d\u041a\u0410 \u0421\u0421\u0421\u0420' (State Bank of the USSR Note) and '\u0414\u0412\u0415\u0421\u0422\u0418 \u0420\u0423\u0411\u041b\u0415\u0419' (Two Hundred Rubles).", "historical_notes": "MISMATCHED PAIR: The front image shows a 25 ruble note from the 1961 Soviet series (P-234), while the back image shows a 200 ruble note from the 1991-1992 series (P-244). The 25 ruble 1961 series was part of the major currency reform of that year which redenominated the ruble at 10:1. The 200 ruble note was introduced in 1991 during the late Soviet period as inflation began to accelerate. Both denominations were demonetized following the dissolution of the USSR in 1991 and subsequent Russian currency reforms. These are clearly two different banknotes that do not form a front/back pair.", "language_script": "Cyrillic", "languages": "ru,uk,be,uz,kk,ky,tg,az,lt,lv,et,ka,hy,mo", "serial_number": "\u0413\u0412 2223370", "serial_prefix": "\u0413\u0412", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VG", "condition_notes": "The 25 ruble note shows significant edge damage, staining, and discoloration particularly on the left side. The 200 ruble note shows moderate circulation wear, edge wear, and some soiling.", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.95, "currency": 0.98, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.98, "signatures": 0.0, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.98, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.92, "historical_notes": 0.85, "condition_grade": 0.75}, "overall_confidence": 0.35, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.95, "currency": 0.98, "denomination": 0.0, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.98, "signatures": 0.0, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.98, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.92, "historical_notes": 0.85, "condition_grade": 0.75}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:05:58
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Russia",
    "currency": "Ruble",
    "denomination": "25",
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": "1961",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (1947 series)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Билет Государственного Банка СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "157x67",
    "watermark": null,
    "security_features": "intaglio,microprint",
    "color_palette": "#d4a5a5,#8b7b8b,#f5e6d3",

    "portrait_subject": "Alexander III",
    "reverse_subject": "Vladimir Lenin",
    "themes": "monarch,statesman,communist",
    "commemorative": false,
    "commemorative_occasion": null,

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

    "front_description": "Alexander III (1845–1894), Emperor of Russia from 1881 to 1894, known for his reactionary domestic policies and efforts to maintain autocratic rule. The portrait appears in an ornate baroque frame surmounted by the Imperial Russian crown and the double-headed eagle coat of arms. The Cyrillic text 'АЛЕКСАНДР III' appears beneath the portrait. This is highly unusual as Soviet-era currency typically did not feature Tsarist imagery; this appears to be a mismatched pair of images where the front is from an Imperial Russian state credit note.",

    "back_description": "Vladimir Ilyich Lenin (1870–1924), founder of the Soviet state and leader of the Bolshevik Revolution of 1917. His profile portrait appears at left on this 25-ruble note from 1961, part of the Soviet currency reform that redenominated the ruble at 10:1. The State Emblem of the USSR with hammer and sickle is displayed prominently at center top, with the text 'Билет Государственного Банка СССР' (State Bank of the USSR Note) and 'Двадцать пять рублей' (Twenty-five rubles).",

    "historical_notes": "CRITICAL FLAG: These images do NOT match — they appear to be front and back of two entirely different banknotes from different eras and issuers. The FRONT shows an Imperial Russian state credit note (Государственный кредитный билет) from the late 19th/early 20th century featuring Tsar Alexander III with Imperial regalia. The BACK shows a 1961 Soviet 25-ruble note featuring Lenin, issued during the Khrushchev-era currency reform of January 1, 1961, which redenominated at 10 old rubles = 1 new ruble. The 1961 series remained in circulation until the collapse of the USSR in 1991. The denomination on the front appears to read '25 РУБЛЕЙ' but the design is entirely inconsistent with Soviet currency iconography. Without seeing the actual reverse of the Imperial note or the actual obverse of the 1961 Soviet note, confident cataloguing is impossible.",

    "language_script": "Cyrillic",
    "languages": "ru",

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

    "condition_grade": "VF",
    "condition_notes": "Both notes show circulation wear, staining, and edge damage visible on the back image",

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

    "field_confidence": {
      "country": 0.95,
      "currency": 0.95,
      "denomination": 0.90,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.95,
      "issuer": 0.90,
      "signatures": 0.0,
      "printer": 0.85,
      "material": 0.90,
      "dimensions_mm": 0.75,
      "watermark": 0.0,
      "portrait_subject": 0.70,
      "reverse_subject": 0.95,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.70,
      "back_description": 0.95,
      "historical_notes": 0.90,
      "condition_grade": 0.75
    },
    "overall_confidence": 0.40,
    "flags": ["mismatched_pair", "obscured", "foreign_object"]
  }
  ```

parsed_json:
  {"country": "Russia", "currency": "Ruble", "denomination": "25", "series_year": null, "series_name": null, "series_range": null, "issue_year": "1961", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (1947 series)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0411\u0438\u043b\u0435\u0442 \u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u0411\u0430\u043d\u043a\u0430 \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "157x67", "watermark": null, "security_features": "intaglio,microprint", "color_palette": "#d4a5a5,#8b7b8b,#f5e6d3", "portrait_subject": "Alexander III", "reverse_subject": "Vladimir Lenin", "themes": "monarch,statesman,communist", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "Alexander III (1845\u20131894), Emperor of Russia from 1881 to 1894, known for his reactionary domestic policies and efforts to maintain autocratic rule. The portrait appears in an ornate baroque frame surmounted by the Imperial Russian crown and the double-headed eagle coat of arms. The Cyrillic text '\u0410\u041b\u0415\u041a\u0421\u0410\u041d\u0414\u0420 III' appears beneath the portrait. This is highly unusual as Soviet-era currency typically did not feature Tsarist imagery; this appears to be a mismatched pair of images where the front is from an Imperial Russian state credit note.", "back_description": "Vladimir Ilyich Lenin (1870\u20131924), founder of the Soviet state and leader of the Bolshevik Revolution of 1917. His profile portrait appears at left on this 25-ruble note from 1961, part of the Soviet currency reform that redenominated the ruble at 10:1. The State Emblem of the USSR with hammer and sickle is displayed prominently at center top, with the text '\u0411\u0438\u043b\u0435\u0442 \u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u0411\u0430\u043d\u043a\u0430 \u0421\u0421\u0421\u0420' (State Bank of the USSR Note) and '\u0414\u0432\u0430\u0434\u0446\u0430\u0442\u044c \u043f\u044f\u0442\u044c \u0440\u0443\u0431\u043b\u0435\u0439' (Twenty-five rubles).", "historical_notes": "CRITICAL FLAG: These images do NOT match \u2014 they appear to be front and back of two entirely different banknotes from different eras and issuers. The FRONT shows an Imperial Russian state credit note (\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u043a\u0440\u0435\u0434\u0438\u0442\u043d\u044b\u0439 \u0431\u0438\u043b\u0435\u0442) from the late 19th/early 20th century featuring Tsar Alexander III with Imperial regalia. The BACK shows a 1961 Soviet 25-ruble note featuring Lenin, issued during the Khrushchev-era currency reform of January 1, 1961, which redenominated at 10 old rubles = 1 new ruble. The 1961 series remained in circulation until the collapse of the USSR in 1991. The denomination on the front appears to read '25 \u0420\u0423\u0411\u041b\u0415\u0419' but the design is entirely inconsistent with Soviet currency iconography. Without seeing the actual reverse of the Imperial note or the actual obverse of the 1961 Soviet note, confident cataloguing is impossible.", "language_script": "Cyrillic", "languages": "ru", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Both notes show circulation wear, staining, and edge damage visible on the back image", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.95, "currency": 0.95, "denomination": 0.9, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.95, "issuer": 0.9, "signatures": 0.0, "printer": 0.85, "material": 0.9, "dimensions_mm": 0.75, "watermark": 0.0, "portrait_subject": 0.7, "reverse_subject": 0.95, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.7, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.75}, "overall_confidence": 0.4, "flags": ["mismatched_pair", "obscured", "foreign_object"]}

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


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:05:58
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": null,
    "denomination": "25",
    "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": "#d4a5a5,#8b7355,#2f2f2f",

    "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": "Alexander III of Russia (1845–1894), Emperor of Russia from 1881 until his death. Known as 'The Peacemaker' for his efforts to avoid military conflicts, he pursued a policy of Russian nationalism and autocracy. The portrait shows him in full military regalia with the Imperial Crown of Russia above. The note bears the text 'АЛЕКСАНДРЪ III' (Alexander III) and denomination of 25 rubles in ornate Cyrillic script. Features the double-headed eagle coat of arms of the Russian Empire.",

    "back_description": "Vladimir Ilyich Lenin (1870–1924), revolutionary leader and founder of the Soviet state, shown in left profile portrait. The State Emblem of the Soviet Union with hammer and sickle appears at center. Text reads 'БИЛЕТ ГОСУДАРСТВЕННОГО БАНКА СССР' (State Bank of the USSR Note) and 'ДВАДЦАТЬ ПЯТЬ РУБЛЕЙ' (Twenty-Five Rubles). The year 1961 is printed at lower right.",

    "historical_notes": "CRITICAL: These two images are NOT from the same banknote. The front shows an Imperial Russian 25 ruble note from the 1909 State Credit Note series (Pick 12), featuring Tsar Alexander III, issued during the reign of Nicholas II. The back shows a Soviet 25 ruble note from 1961 (Pick 234), featuring Lenin and Soviet state symbols. These represent entirely different political eras - Tsarist Russia vs. Soviet Union - separated by the 1917 Revolution. The Imperial note was issued ca. 1909-1912 and remained in circulation until the Revolution. The Soviet note was part of the 1961 currency reform that remained valid until the USSR's dissolution in 1991.",

    "language_script": "Cyrillic",
    "languages": "ru",

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

    "condition_grade": "VG",
    "condition_notes": "Front (Imperial note) shows fading and some discoloration. Back (Soviet note) shows significant foxing, staining, and age toning, particularly on right side.",

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

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

parsed_json:
  {"country": null, "currency": null, "denomination": "25", "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": "#d4a5a5,#8b7355,#2f2f2f", "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": "Alexander III of Russia (1845\u20131894), Emperor of Russia from 1881 until his death. Known as 'The Peacemaker' for his efforts to avoid military conflicts, he pursued a policy of Russian nationalism and autocracy. The portrait shows him in full military regalia with the Imperial Crown of Russia above. The note bears the text '\u0410\u041b\u0415\u041a\u0421\u0410\u041d\u0414\u0420\u042a III' (Alexander III) and denomination of 25 rubles in ornate Cyrillic script. Features the double-headed eagle coat of arms of the Russian Empire.", "back_description": "Vladimir Ilyich Lenin (1870\u20131924), revolutionary leader and founder of the Soviet state, shown in left profile portrait. The State Emblem of the Soviet Union with hammer and sickle appears at center. Text reads '\u0411\u0418\u041b\u0415\u0422 \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u041e\u0413\u041e \u0411\u0410\u041d\u041a\u0410 \u0421\u0421\u0421\u0420' (State Bank of the USSR Note) and '\u0414\u0412\u0410\u0414\u0426\u0410\u0422\u042c \u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Twenty-Five Rubles). The year 1961 is printed at lower right.", "historical_notes": "CRITICAL: These two images are NOT from the same banknote. The front shows an Imperial Russian 25 ruble note from the 1909 State Credit Note series (Pick 12), featuring Tsar Alexander III, issued during the reign of Nicholas II. The back shows a Soviet 25 ruble note from 1961 (Pick 234), featuring Lenin and Soviet state symbols. These represent entirely different political eras - Tsarist Russia vs. Soviet Union - separated by the 1917 Revolution. The Imperial note was issued ca. 1909-1912 and remained in circulation until the Revolution. The Soviet note was part of the 1961 currency reform that remained valid until the USSR's dissolution in 1991.", "language_script": "Cyrillic", "languages": "ru", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "VG", "condition_notes": "Front (Imperial note) shows fading and some discoloration. Back (Soviet note) shows significant foxing, staining, and age toning, particularly on right side.", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.0, "currency": 0.0, "denomination": 0.95, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.0, "signatures": 0.0, "printer": 0.0, "material": 0.95, "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": 0.9, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.7}, "overall_confidence": 0.15, "flags": ["mismatched_pair"]}

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


provider: openai
model: gpt-4o
status: ok
created_at: 2026-05-10 07:05:58
prompt_version: v3-year-reasoning
raw_response:
  {
    "country": "Russia",
    "currency": "Ruble",
    "denomination": "25 Rubles",
    "series_year": "1961",
    "series_name": null,
    "series_range": "1961–1991",
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "withdrawn",
    "legal_status_date": "1991",
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственный банк СССР",
    "signatures": null,
    "printer": null,
    "engraver": null,
    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": null,
    "color_palette": null,
    "portrait_subject": "Alexander III",
    "reverse_subject": "Vladimir Lenin",
    "themes": "statesman",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,
    "front_description": "Alexander III (1845–1894), Emperor of Russia from 1881 to 1894, known for his conservative policies and strengthening the absolute power of the monarchy.",
    "back_description": "Vladimir Lenin (1870–1924), leader of the Bolshevik Revolution and founding head of Soviet Russia, featured prominently on Soviet currency as a symbol of communism.",
    "historical_notes": "These notes were part of the 1961 currency reform in the USSR, designed to stabilize the economy and simplify transactions. They were used until the dissolution of the Soviet Union in 1991.",
    "language_script": "Cyrillic",
    "languages": "ru",
    "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": 0.8,
      "series_year": 1.0,
      "issue_year": 0.6,
      "issuer": 1.0,
      "signatures": 0.5,
      "printer": 0.5,
      "material": 0.9,
      "dimensions_mm": 0.5,
      "watermark": 0.5,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "pick_number": 0.5,
      "serial_number": 0.5,
      "front_description": 0.9,
      "back_description": 0.9,
      "historical_notes": 0.8,
      "condition_grade": 0.5
    },
    "overall_confidence": 0.85,
    "flags": [
      "mismatched_pair"
    ]
  }

parsed_json:
  {"country": "Russia", "currency": "Ruble", "denomination": "25 Rubles", "series_year": "1961", "series_name": null, "series_range": "1961\u20131991", "issue_year": null, "era": "1946_1989", "legal_status": "withdrawn", "legal_status_date": "1991", "predecessor_currency": null, "successor_currency": null, "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0431\u0430\u043d\u043a \u0421\u0421\u0421\u0420", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": null, "portrait_subject": "Alexander III", "reverse_subject": "Vladimir Lenin", "themes": "statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "Alexander III (1845\u20131894), Emperor of Russia from 1881 to 1894, known for his conservative policies and strengthening the absolute power of the monarchy.", "back_description": "Vladimir Lenin (1870\u20131924), leader of the Bolshevik Revolution and founding head of Soviet Russia, featured prominently on Soviet currency as a symbol of communism.", "historical_notes": "These notes were part of the 1961 currency reform in the USSR, designed to stabilize the economy and simplify transactions. They were used until the dissolution of the Soviet Union in 1991.", "language_script": "Cyrillic", "languages": "ru", "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": 0.8, "series_year": 1.0, "issue_year": 0.6, "issuer": 1.0, "signatures": 0.5, "printer": 0.5, "material": 0.9, "dimensions_mm": 0.5, "watermark": 0.5, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.5, "serial_number": 0.5, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.8, "condition_grade": 0.5}, "overall_confidence": 0.85, "flags": ["mismatched_pair"]}

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


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:05:58
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Romania",
    "currency": "Romanian Leu",
    "denomination": "1000",
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": "pre_1900",
    "legal_status": "demonetized",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "State Bank of the Russian Empire",
    "issuer_native": "Государственный банкъ",
    "signatures": "Manager: Shipov; Cashier: Baryshev",
    "printer": "Goznak (State Printing Works)",
    "engraver": null,
    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": "intaglio,microprint",
    "color_palette": "#d4c5a8,#8b9a8f,#c19a6b",
    "portrait_subject": null,
    "reverse_subject": "Imperial Russian State Coat of Arms",
    "themes": "statesman,architecture",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,
    "front_description": "Romanian National Bank (Banca Națională a României) overprint on a Russian Imperial 1000-ruble note. The front shows the serial number 004A5019010 and architectural columns with decorative floral motifs. This represents Romanian occupation currency used during World War I when Romania occupied parts of Bessarabia and needed emergency currency; existing Russian Imperial notes were overprinted with Romanian authority markings.",
    "back_description": "Imperial Russian State Coat of Arms (double-headed eagle with crown, orb, and sceptre) at left. The text reads 'State Credit Note / Twenty-Five Rubles' in Russian (Государственный кредитный билетъ / Двадцать пять рублей). Serial number ГМ 635322. The date '1909' appears in an ornamental oval at bottom right. The note includes the signatures of Manager Shipov and Cashier Baryshev, standard for Russian Imperial currency of this period.",
    "historical_notes": "CRITICAL MISMATCH: The front and back images appear to show DIFFERENT notes. The front shows a Romanian-overprinted 1000 lei note (\"BANCA NATIONALA A ROMANIEI / UNA MIE lei 1000\" with Romanian text and serial 004A5019010). The back shows a Russian Imperial 25-ruble note dated 1909 (\"ДВАДЦАТЬ ПЯТЬ РУБЛЕЙ\" with Cyrillic text, imperial eagle, and serial ГМ 635322). These are not the obverse and reverse of the same banknote. The front represents Romanian occupation/emergency currency from WWI (likely 1916–1918 when Romania issued overprinted Russian notes in occupied territories). The back is a standard Tsarist-era 25-ruble State Credit Note from 1909, issued under Nicholas II. The Shipov-Baryshev signature combination on Russian notes is documented for 1909–1912. Without being able to examine a single coherent note, precise Pick numbers and catalogue details cannot be confidently assigned.",
    "language_script": "Latin,Cyrillic",
    "languages": "ro,ru",
    "serial_number": "004A5019010",
    "serial_prefix": "004A",
    "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": 0.5,
      "currency": 0.5,
      "denomination": 0.6,
      "series_name": 0.3,
      "series_year": 0.3,
      "issue_year": 0.3,
      "issuer": 0.7,
      "signatures": 0.85,
      "printer": 0.7,
      "material": 0.9,
      "dimensions_mm": 0.2,
      "watermark": 0.2,
      "portrait_subject": 0.9,
      "reverse_subject": 0.9,
      "pick_number": 0.1,
      "serial_number": 0.9,
      "front_description": 0.75,
      "back_description": 0.9,
      "historical_notes": 0.8,
      "condition_grade": 0.2
    },
    "overall_confidence": 0.4,
    "flags": [
      "mismatched_pair"
    ]
  }
  ```

parsed_json:
  {"country": "Romania", "currency": "Romanian Leu", "denomination": "1000", "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": "pre_1900", "legal_status": "demonetized", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "State Bank of the Russian Empire", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0431\u0430\u043d\u043a\u044a", "signatures": "Manager: Shipov; Cashier: Baryshev", "printer": "Goznak (State Printing Works)", "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": "intaglio,microprint", "color_palette": "#d4c5a8,#8b9a8f,#c19a6b", "portrait_subject": null, "reverse_subject": "Imperial Russian State Coat of Arms", "themes": "statesman,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "Romanian National Bank (Banca Na\u021bional\u0103 a Rom\u00e2niei) overprint on a Russian Imperial 1000-ruble note. The front shows the serial number 004A5019010 and architectural columns with decorative floral motifs. This represents Romanian occupation currency used during World War I when Romania occupied parts of Bessarabia and needed emergency currency; existing Russian Imperial notes were overprinted with Romanian authority markings.", "back_description": "Imperial Russian State Coat of Arms (double-headed eagle with crown, orb, and sceptre) at left. The text reads 'State Credit Note / Twenty-Five Rubles' in Russian (\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u043a\u0440\u0435\u0434\u0438\u0442\u043d\u044b\u0439 \u0431\u0438\u043b\u0435\u0442\u044a / \u0414\u0432\u0430\u0434\u0446\u0430\u0442\u044c \u043f\u044f\u0442\u044c \u0440\u0443\u0431\u043b\u0435\u0439). Serial number \u0413\u041c 635322. The date '1909' appears in an ornamental oval at bottom right. The note includes the signatures of Manager Shipov and Cashier Baryshev, standard for Russian Imperial currency of this period.", "historical_notes": "CRITICAL MISMATCH: The front and back images appear to show DIFFERENT notes. The front shows a Romanian-overprinted 1000 lei note (\"BANCA NATIONALA A ROMANIEI / UNA MIE lei 1000\" with Romanian text and serial 004A5019010). The back shows a Russian Imperial 25-ruble note dated 1909 (\"\u0414\u0412\u0410\u0414\u0426\u0410\u0422\u042c \u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419\" with Cyrillic text, imperial eagle, and serial \u0413\u041c 635322). These are not the obverse and reverse of the same banknote. The front represents Romanian occupation/emergency currency from WWI (likely 1916\u20131918 when Romania issued overprinted Russian notes in occupied territories). The back is a standard Tsarist-era 25-ruble State Credit Note from 1909, issued under Nicholas II. The Shipov-Baryshev signature combination on Russian notes is documented for 1909\u20131912. Without being able to examine a single coherent note, precise Pick numbers and catalogue details cannot be confidently assigned.", "language_script": "Latin,Cyrillic", "languages": "ro,ru", "serial_number": "004A5019010", "serial_prefix": "004A", "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": 0.5, "currency": 0.5, "denomination": 0.6, "series_name": 0.3, "series_year": 0.3, "issue_year": 0.3, "issuer": 0.7, "signatures": 0.85, "printer": 0.7, "material": 0.9, "dimensions_mm": 0.2, "watermark": 0.2, "portrait_subject": 0.9, "reverse_subject": 0.9, "pick_number": 0.1, "serial_number": 0.9, "front_description": 0.75, "back_description": 0.9, "historical_notes": 0.8, "condition_grade": 0.2}, "overall_confidence": 0.4, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.5, "currency": 0.5, "denomination": 0.6, "series_name": 0.3, "series_year": 0.3, "issue_year": 0.3, "issuer": 0.7, "signatures": 0.85, "printer": 0.7, "material": 0.9, "dimensions_mm": 0.2, "watermark": 0.2, "portrait_subject": 0.9, "reverse_subject": 0.9, "pick_number": 0.1, "serial_number": 0.9, "front_description": 0.75, "back_description": 0.9, "historical_notes": 0.8, "condition_grade": 0.2}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:05:58
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": "Romanian 1000 Lei banknote from the 1998 series featuring the ruins of the ancient Greek colony of Histria (Istros) on the Black Sea coast, founded in the 7th century BC. The note depicts archaeological remains of columns from this important Danubian settlement, along with native flora including stylized blue poppy flowers and traditional Romanian geometric patterns. The National Bank of Romania (BNR) monogram appears at upper right.",
    "back_description": "Imperial Russian 25 Ruble State Credit Note dated 1909, featuring the double-headed eagle coat of arms of the Russian Empire at upper left. The note bears the denomination in ornate Cyrillic script reading 'Двадцать пять рублей' (Twenty-five rubles). Text states the State Bank exchanges credit notes for gold coin without limit, with the gold standard specification. Signatures of the Manager (Управляющий) and Cashier (Кассиръ) appear at bottom.",
    "historical_notes": "MISMATCHED PAIR: These images show two completely different banknotes from different countries and eras. The front image is a Romanian 1000 Lei from the 1998 polymer/paper series (P-106), while the back image is an Imperial Russian 25 Ruble State Credit Note from 1909 (P-12b). The Romanian note was issued by Banca Națională a României and circulated until replaced by the 2005 redenomination. The Russian note was issued during the reign of Tsar Nicholas II, before the 1917 Revolution, and remained in limited circulation into the early Soviet period before becoming worthless.",
    "language_script": "Romanian Latin script (front), Russian Cyrillic pre-revolutionary orthography (back)",
    "languages": "ro,ru",

    "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": 0.7,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.0,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.85,
      "back_description": 0.85,
      "historical_notes": 0.9,
      "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": "Romanian 1000 Lei banknote from the 1998 series featuring the ruins of the ancient Greek colony of Histria (Istros) on the Black Sea coast, founded in the 7th century BC. The note depicts archaeological remains of columns from this important Danubian settlement, along with native flora including stylized blue poppy flowers and traditional Romanian geometric patterns. The National Bank of Romania (BNR) monogram appears at upper right.", "back_description": "Imperial Russian 25 Ruble State Credit Note dated 1909, featuring the double-headed eagle coat of arms of the Russian Empire at upper left. The note bears the denomination in ornate Cyrillic script reading '\u0414\u0432\u0430\u0434\u0446\u0430\u0442\u044c \u043f\u044f\u0442\u044c \u0440\u0443\u0431\u043b\u0435\u0439' (Twenty-five rubles). Text states the State Bank exchanges credit notes for gold coin without limit, with the gold standard specification. Signatures of the Manager (\u0423\u043f\u0440\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0439) and Cashier (\u041a\u0430\u0441\u0441\u0438\u0440\u044a) appear at bottom.", "historical_notes": "MISMATCHED PAIR: These images show two completely different banknotes from different countries and eras. The front image is a Romanian 1000 Lei from the 1998 polymer/paper series (P-106), while the back image is an Imperial Russian 25 Ruble State Credit Note from 1909 (P-12b). The Romanian note was issued by Banca Na\u021bional\u0103 a Rom\u00e2niei and circulated until replaced by the 2005 redenomination. The Russian note was issued during the reign of Tsar Nicholas II, before the 1917 Revolution, and remained in limited circulation into the early Soviet period before becoming worthless.", "language_script": "Romanian Latin script (front), Russian Cyrillic pre-revolutionary orthography (back)", "languages": "ro,ru", "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": 0.7, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.85, "back_description": 0.85, "historical_notes": 0.9, "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": 0.7, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.85, "back_description": 0.85, "historical_notes": 0.9, "condition_grade": 0.0}


provider: openai
model: gpt-4o
status: ok
created_at: 2026-05-10 07:05:58
prompt_version: v3-year-reasoning
raw_response:
  {
    "country": "Romania",
    "currency": "Romanian Leu",
    "denomination": "1000",
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

    "issuer": "Banca Națională a României",
    "issuer_native": "Banca Națională a României",
    "signatures": "Governor: Mugur Isărescu",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": "see_through_register, intaglio",
    "color_palette": "#c8bfa2,#678f92,#ffffff",

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

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

    "front_description": "Depicts columns from the Roman Forum and floral motifs, symbolizing Romanian heritage and culture.",
    "back_description": "Coat of arms of the Russian Empire with inscriptions in old Russian script.",
    "historical_notes": "The front design is from the Romanian 1000 leu note from the 1990s. The note features symbols of Romanian heritage. The back image is of a Russian 25 ruble note from 1909, highlighting incompatibility.",
    "language_script": "Latin",
    "languages": "ro",

    "serial_number": "004A5019010",
    "serial_prefix": "004A",
    "serial_suffix": "010",
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "F",
    "condition_notes": "Some wear and fading evident on the note.",
    
    "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": 0.9,
      "printer": 0.5,
      "material": 0.9,
      "dimensions_mm": 0.5,
      "watermark": 0.5,
      "portrait_subject": 0.5,
      "reverse_subject": 0.5,
      "pick_number": 0.5,
      "serial_number": 1.0,
      "front_description": 0.9,
      "back_description": 0.9,
      "historical_notes": 0.8,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.7,
    "flags": ["mismatched_pair"]
  }

parsed_json:
  {"country": "Romania", "currency": "Romanian Leu", "denomination": "1000", "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "Banca Na\u021bional\u0103 a Rom\u00e2niei", "issuer_native": "Banca Na\u021bional\u0103 a Rom\u00e2niei", "signatures": "Governor: Mugur Is\u0103rescu", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": "see_through_register, intaglio", "color_palette": "#c8bfa2,#678f92,#ffffff", "portrait_subject": null, "reverse_subject": null, "themes": "architecture, flora", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "Depicts columns from the Roman Forum and floral motifs, symbolizing Romanian heritage and culture.", "back_description": "Coat of arms of the Russian Empire with inscriptions in old Russian script.", "historical_notes": "The front design is from the Romanian 1000 leu note from the 1990s. The note features symbols of Romanian heritage. The back image is of a Russian 25 ruble note from 1909, highlighting incompatibility.", "language_script": "Latin", "languages": "ro", "serial_number": "004A5019010", "serial_prefix": "004A", "serial_suffix": "010", "replacement_note": false, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Some wear and fading evident on the note.", "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": 0.9, "printer": 0.5, "material": 0.9, "dimensions_mm": 0.5, "watermark": 0.5, "portrait_subject": 0.5, "reverse_subject": 0.5, "pick_number": 0.5, "serial_number": 1.0, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.8, "condition_grade": 0.8}, "overall_confidence": 0.7, "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": 0.9, "printer": 0.5, "material": 0.9, "dimensions_mm": 0.5, "watermark": 0.5, "portrait_subject": 0.5, "reverse_subject": 0.5, "pick_number": 0.5, "serial_number": 1.0, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.8, "condition_grade": 0.8}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:06:32
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
    "denomination": "10",
    "series_year": "1961",
    "series_name": "Fourth Series",
    "series_range": "1961–1991",
    "issue_year": "1961",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (1947 series)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственного Банка СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "157x67",
    "watermark": "Hammer and sickle with five-pointed star",
    "security_features": "microprint,intaglio,watermark",
    "color_palette": "#c48b7f,#e8d4b0,#8b4513",

    "portrait_subject": "Vladimir Lenin",
    "reverse_subject": "Vladimir Lenin",
    "themes": "statesman,communist",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-233",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Vladimir Lenin (1870–1924), founder of the Soviet state and Bolshevik leader who led the October Revolution of 1917 and served as the first leader of Soviet Russia and the Soviet Union. Lenin's portrait appeared on Soviet banknotes from 1937 onwards and became the iconic symbol of Soviet currency. The front features the State Bank of the USSR emblem and multilingual denomination text in the languages of the Soviet republics.",
    "back_description": "Vladimir Lenin in profile portrait at right, with the State Emblem of the Soviet Union (hammer and sickle surrounded by wheat stalks) at upper left. The text 'БИЛЕТЪ ГОСУДАРСТВЕННОГО БАНКА СССР' (Ticket of the State Bank of the USSR) and 'ДЕСЯТЬ РУБЛЕЙ' (Ten Rubles) is prominently displayed. The design represents the standardized Soviet currency aesthetic of the 1961 monetary reform.",
    "historical_notes": "This note belongs to the Fourth Series of Soviet currency, introduced during Khrushchev's monetary reform of January 1, 1961, which redenominated the ruble at a 10:1 ratio to combat inflation and simplify accounting. The 1961 series remained in circulation until the dissolution of the USSR in 1991, making it the longest-running Soviet banknote series. Designed with enhanced security features and standardized sizing, this series reflected the relative economic stability of the Brezhnev era. The multilingual text reflects the multinational character of the USSR, including Russian and translations in languages of constituent republics. The date '1961' is printed on the note. These notes were demonetized following the collapse of the Soviet Union and replaced by Russian Federation currency in 1992–1993.",
    "language_script": "Cyrillic",
    "languages": "ru",

    "serial_number": "ГЭ 7572816",
    "serial_prefix": "ГЭ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Circulated note with visible fold marks and handling wear but intact with clear printing and no tears",

    "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": 0.95,
      "material": 0.95,
      "dimensions_mm": 0.9,
      "watermark": 0.9,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "pick_number": 0.95,
      "serial_number": 0.98,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.95,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble", "denomination": "10", "series_year": "1961", "series_name": "Fourth Series", "series_range": "1961\u20131991", "issue_year": "1961", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (1947 series)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u0411\u0430\u043d\u043a\u0430 \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "157x67", "watermark": "Hammer and sickle with five-pointed star", "security_features": "microprint,intaglio,watermark", "color_palette": "#c48b7f,#e8d4b0,#8b4513", "portrait_subject": "Vladimir Lenin", "reverse_subject": "Vladimir Lenin", "themes": "statesman,communist", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-233", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Vladimir Lenin (1870\u20131924), founder of the Soviet state and Bolshevik leader who led the October Revolution of 1917 and served as the first leader of Soviet Russia and the Soviet Union. Lenin's portrait appeared on Soviet banknotes from 1937 onwards and became the iconic symbol of Soviet currency. The front features the State Bank of the USSR emblem and multilingual denomination text in the languages of the Soviet republics.", "back_description": "Vladimir Lenin in profile portrait at right, with the State Emblem of the Soviet Union (hammer and sickle surrounded by wheat stalks) at upper left. The text '\u0411\u0418\u041b\u0415\u0422\u042a \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u041e\u0413\u041e \u0411\u0410\u041d\u041a\u0410 \u0421\u0421\u0421\u0420' (Ticket of the State Bank of the USSR) and '\u0414\u0415\u0421\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Ten Rubles) is prominently displayed. The design represents the standardized Soviet currency aesthetic of the 1961 monetary reform.", "historical_notes": "This note belongs to the Fourth Series of Soviet currency, introduced during Khrushchev's monetary reform of January 1, 1961, which redenominated the ruble at a 10:1 ratio to combat inflation and simplify accounting. The 1961 series remained in circulation until the dissolution of the USSR in 1991, making it the longest-running Soviet banknote series. Designed with enhanced security features and standardized sizing, this series reflected the relative economic stability of the Brezhnev era. The multilingual text reflects the multinational character of the USSR, including Russian and translations in languages of constituent republics. The date '1961' is printed on the note. These notes were demonetized following the collapse of the Soviet Union and replaced by Russian Federation currency in 1992\u20131993.", "language_script": "Cyrillic", "languages": "ru", "serial_number": "\u0413\u042d 7572816", "serial_prefix": "\u0413\u042d", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Circulated note with visible fold marks and handling wear but intact with clear printing and no tears", "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": 0.95, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.95, "serial_number": 0.98, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.85}, "overall_confidence": 0.95, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.95, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.95, "serial_number": 0.98, "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 07:06:33
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Russia",
    "currency": "RUB",
    "denomination": "1000",
    "series_year": "1992",
    "series_name": "1992 series",
    "series_range": "1992–1993",
    "issue_year": "1992",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "1993",
    "predecessor_currency": "Soviet ruble",
    "successor_currency": "Russian ruble (redenominated 1993)",

    "issuer": "State Bank of the USSR (transitional note)",
    "issuer_native": "Государственный Банк СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "157x69",
    "watermark": "Hammer and sickle pattern",
    "security_features": "microprint,intaglio,security_thread",
    "color_palette": "#d4a574,#8b4513,#90c890",

    "portrait_subject": "Vladimir Lenin",
    "reverse_subject": "Moscow Kremlin with Saint Basil's Cathedral",
    "themes": "statesman,architecture,commemorative",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-250",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Moscow Kremlin ensemble with Saint Basil's Cathedral. The Kremlin, the historic fortified complex in the heart of Moscow, serves as the official residence of the Russian president. Saint Basil's Cathedral (1555–1561), with its distinctive colorful onion domes, was commissioned by Ivan the Terrible to commemorate the capture of Kazan. This note represents the first post-Soviet Russian currency issue, retaining Soviet-era imagery during the transitional period of 1992–1993.",
    "back_description": "Vladimir Ilyich Lenin (1870–1924), revolutionary leader, founder of the Bolshevik Party and the Soviet state. Lenin led the October Revolution of 1917 and served as the first leader of Soviet Russia and then the Soviet Union until his death. His portrait appeared on Soviet and early Russian Federation banknotes as the dominant political figure of 20th-century Russian history. The State Emblem of the USSR appears at upper left.",
    "historical_notes": "This 1000-ruble note was issued in 1992 as part of the first Russian Federation currency series following the dissolution of the USSR in December 1991. Despite being issued by the newly independent Russian Federation, the notes retained Soviet-era design elements including Lenin's portrait and the State Bank of the USSR inscription, reflecting the transitional nature of this issue. The series was printed with the year 1992 and circulated briefly before being replaced by the 1993 series as Russia underwent severe hyperinflation. The note was demonetized in 1993 when the Russian government introduced a reformed ruble series. Printed by Goznak (Russian State Mint), the traditional Soviet and Russian currency printer. Serial number format follows Soviet-era conventions with Cyrillic prefix 'ВЛ'.",
    "language_script": "Cyrillic",
    "languages": "ru",

    "serial_number": "ВЛ 4669618",
    "serial_prefix": "ВЛ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Circulated note with visible handling, minor soiling, good centering",

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

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

parsed_json:
  {"country": "Russia", "currency": "RUB", "denomination": "1000", "series_year": "1992", "series_name": "1992 series", "series_range": "1992\u20131993", "issue_year": "1992", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "1993", "predecessor_currency": "Soviet ruble", "successor_currency": "Russian ruble (redenominated 1993)", "issuer": "State Bank of the USSR (transitional note)", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0411\u0430\u043d\u043a \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "157x69", "watermark": "Hammer and sickle pattern", "security_features": "microprint,intaglio,security_thread", "color_palette": "#d4a574,#8b4513,#90c890", "portrait_subject": "Vladimir Lenin", "reverse_subject": "Moscow Kremlin with Saint Basil's Cathedral", "themes": "statesman,architecture,commemorative", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-250", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Moscow Kremlin ensemble with Saint Basil's Cathedral. The Kremlin, the historic fortified complex in the heart of Moscow, serves as the official residence of the Russian president. Saint Basil's Cathedral (1555\u20131561), with its distinctive colorful onion domes, was commissioned by Ivan the Terrible to commemorate the capture of Kazan. This note represents the first post-Soviet Russian currency issue, retaining Soviet-era imagery during the transitional period of 1992\u20131993.", "back_description": "Vladimir Ilyich Lenin (1870\u20131924), revolutionary leader, founder of the Bolshevik Party and the Soviet state. Lenin led the October Revolution of 1917 and served as the first leader of Soviet Russia and then the Soviet Union until his death. His portrait appeared on Soviet and early Russian Federation banknotes as the dominant political figure of 20th-century Russian history. The State Emblem of the USSR appears at upper left.", "historical_notes": "This 1000-ruble note was issued in 1992 as part of the first Russian Federation currency series following the dissolution of the USSR in December 1991. Despite being issued by the newly independent Russian Federation, the notes retained Soviet-era design elements including Lenin's portrait and the State Bank of the USSR inscription, reflecting the transitional nature of this issue. The series was printed with the year 1992 and circulated briefly before being replaced by the 1993 series as Russia underwent severe hyperinflation. The note was demonetized in 1993 when the Russian government introduced a reformed ruble series. Printed by Goznak (Russian State Mint), the traditional Soviet and Russian currency printer. Serial number format follows Soviet-era conventions with Cyrillic prefix '\u0412\u041b'.", "language_script": "Cyrillic", "languages": "ru", "serial_number": "\u0412\u041b 4669618", "serial_prefix": "\u0412\u041b", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Circulated note with visible handling, minor soiling, good centering", "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 1.0, "issue_year": 1.0, "issuer": 0.95, "signatures": 0.0, "printer": 0.95, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.85, "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": 0.85}, "overall_confidence": 0.93, "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": 0.95, "signatures": 0.0, "printer": 0.95, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.85, "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": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:06:35
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
    "denomination": "10",
    "series_year": "1961",
    "series_name": "State Bank of the USSR 1961 series",
    "series_range": "1961-1991",
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (1947 series)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственного Банка СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "137x61",
    "watermark": "Stars pattern",
    "security_features": "microprint,intaglio",
    "color_palette": "#d4a574,#8b4513,#f5deb3",

    "portrait_subject": "Vladimir Lenin",
    "reverse_subject": "Vladimir Lenin",
    "themes": "statesman,political",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "233",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Vladimir Ilyich Lenin (1870–1924), founder of the Soviet state and leader of the Bolshevik Revolution. As the first head of the Soviet government, Lenin established the communist state that would endure until 1991. His portrait appeared on virtually all Soviet banknotes from 1937 onwards, serving as the central ideological symbol of Soviet currency. The front displays the State Bank of the USSR emblem and multilingual denomination text in languages of Soviet republics, reflecting the multinational character of the USSR.",
    "back_description": "Vladimir Lenin in profile, accompanied by the State Arms of the Soviet Union (hammer and sickle surrounded by wheat sheaves with the red star above). The text reads 'БИЛЕТ ГОСУДАРСТВЕННОГО БАНКА СССР' (State Bank of the USSR Note) and '10 РУБЛЕЙ' (10 Rubles). The security text states that banknotes are backed by gold, precious metals, and other assets of the State Bank. This design, introduced during the 1961 monetary reform, remained in use through the collapse of the USSR.",
    "historical_notes": "This note belongs to the 1961 State Bank of the USSR series, introduced during Khrushchev's monetary reform on January 1, 1961, which redenominated the currency at a rate of 10:1 (10 old rubles = 1 new ruble). The reform aimed to simplify accounting and remove excess currency from circulation. The 1961 series remained the standard Soviet currency design until the USSR's dissolution in 1991. The serial number prefix 'тЭ' (Cyrillic letters) indicates a specific print run within the series. While no specific year is printed on this note, the design remained unchanged from 1961 through 1991. The printer Goznak (Гознак - Государственный знак) was the Soviet state security printing authority. This denomination was extremely common in everyday Soviet commerce and remains widely available to collectors today.",
    "language_script": "Cyrillic, Latin",
    "languages": "ru,et,lv,lt,ka,hy,az,tk,uz,kk,ky",

    "serial_number": "тЭ 6510422",
    "serial_prefix": "тЭ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Visible circulation wear, slight discoloration and minor soiling consistent with used note. Paper remains intact with no significant tears, though some creasing is evident.",

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

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.95,
      "series_year": 0.95,
      "issue_year": 0.0,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.95,
      "material": 1.0,
      "dimensions_mm": 0.9,
      "watermark": 0.85,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "pick_number": 0.98,
      "serial_number": 1.0,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.9,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.93,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble", "denomination": "10", "series_year": "1961", "series_name": "State Bank of the USSR 1961 series", "series_range": "1961-1991", "issue_year": null, "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (1947 series)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u0411\u0430\u043d\u043a\u0430 \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "137x61", "watermark": "Stars pattern", "security_features": "microprint,intaglio", "color_palette": "#d4a574,#8b4513,#f5deb3", "portrait_subject": "Vladimir Lenin", "reverse_subject": "Vladimir Lenin", "themes": "statesman,political", "commemorative": false, "commemorative_occasion": null, "pick_number": "233", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Vladimir Ilyich Lenin (1870\u20131924), founder of the Soviet state and leader of the Bolshevik Revolution. As the first head of the Soviet government, Lenin established the communist state that would endure until 1991. His portrait appeared on virtually all Soviet banknotes from 1937 onwards, serving as the central ideological symbol of Soviet currency. The front displays the State Bank of the USSR emblem and multilingual denomination text in languages of Soviet republics, reflecting the multinational character of the USSR.", "back_description": "Vladimir Lenin in profile, accompanied by the State Arms of the Soviet Union (hammer and sickle surrounded by wheat sheaves with the red star above). The text reads '\u0411\u0418\u041b\u0415\u0422 \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u041e\u0413\u041e \u0411\u0410\u041d\u041a\u0410 \u0421\u0421\u0421\u0420' (State Bank of the USSR Note) and '10 \u0420\u0423\u0411\u041b\u0415\u0419' (10 Rubles). The security text states that banknotes are backed by gold, precious metals, and other assets of the State Bank. This design, introduced during the 1961 monetary reform, remained in use through the collapse of the USSR.", "historical_notes": "This note belongs to the 1961 State Bank of the USSR series, introduced during Khrushchev's monetary reform on January 1, 1961, which redenominated the currency at a rate of 10:1 (10 old rubles = 1 new ruble). The reform aimed to simplify accounting and remove excess currency from circulation. The 1961 series remained the standard Soviet currency design until the USSR's dissolution in 1991. The serial number prefix '\u0442\u042d' (Cyrillic letters) indicates a specific print run within the series. While no specific year is printed on this note, the design remained unchanged from 1961 through 1991. The printer Goznak (\u0413\u043e\u0437\u043d\u0430\u043a - \u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0437\u043d\u0430\u043a) was the Soviet state security printing authority. This denomination was extremely common in everyday Soviet commerce and remains widely available to collectors today.", "language_script": "Cyrillic, Latin", "languages": "ru,et,lv,lt,ka,hy,az,tk,uz,kk,ky", "serial_number": "\u0442\u042d 6510422", "serial_prefix": "\u0442\u042d", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Visible circulation wear, slight discoloration and minor soiling consistent with used note. Paper remains intact with no significant tears, though some creasing is evident.", "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 0.95, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.95, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.98, "serial_number": 1.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.85}, "overall_confidence": 0.93, "flags": []}

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


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:06:36
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
    "denomination": "10",
    "series_year": "1961",
    "series_name": "1961 Series",
    "series_range": "1961–1991",
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (1947 series)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственного Банка СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "150x65",
    "watermark": "Stars pattern in clear field at left",
    "security_features": "microprint,intaglio",
    "color_palette": "#d4a276,#8b4513,#f5deb3",

    "portrait_subject": "Vladimir Lenin",
    "reverse_subject": "Vladimir Lenin",
    "themes": "statesman,communist",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-233",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Soviet 10 Ruble note from the 1961 series. The front features the denomination '10' with 'СССР' (USSR) and 'ДЕСЯТЬ РУБЛЕЙ' (Ten Rubles) text in Russian, along with multilingual denomination translations for the various Soviet republics. The text at center reads 'ПОДДЕЛКА БИЛЕТОВ ГОСУДАРСТВЕННОГО БАНКА СССР ПРЕСЛЕДУЕТСЯ ПО ЗАКОНУ' (Counterfeiting of State Bank of the USSR notes is prosecuted by law). This series was issued during the 1961 monetary reform that redenominated the ruble at a rate of 10:1.",

    "back_description": "Vladimir Lenin (1870–1924), founder of the Soviet state, leader of the Bolshevik Revolution of 1917, and first head of the Soviet government. His portrait appears in profile facing left within an oval frame. The State Emblem of the USSR (hammer and sickle surrounded by wheat sheaves) appears at upper left. The denomination 'ДЕСЯТЬ РУБЛЕЙ' (Ten Rubles) and 'БИЛЕТ ГОСУДАРСТВЕННОГО БАНКА СССР' (Note of the State Bank of the USSR) are prominently displayed. Lenin's image appeared on virtually all Soviet banknotes from 1938 onwards as the paramount symbol of the Soviet state.",

    "historical_notes": "This is a 10-ruble note from the 1961 series, issued by the State Bank of the USSR (Госбанк СССР). The 1961 monetary reform replaced the previous 1947 series at a rate of 10 old rubles to 1 new ruble, aimed at addressing post-war monetary issues. This series remained in circulation from 1961 until the dissolution of the Soviet Union in 1991, making it one of the longest-circulating Soviet note series. The design features Lenin on the reverse and multilingual text on the front reflecting the multi-ethnic composition of the USSR, with denominations written in the languages of the 15 Soviet republics. The serial number prefix 'сО' is consistent with Goznak printing practices for this series. These notes were demonetized following the collapse of the USSR and replaced by Russian Federation rubles beginning in 1992–1993.",

    "language_script": "Cyrillic, Latin",
    "languages": "ru,uk,be,uz,kk,ka,az,lt,ro,lv,ky,tg,hy,tk,et",

    "serial_number": "сО1992842",
    "serial_prefix": "сО",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note shows circulation wear with visible folds and some soiling. Edges show minor wear. Colors remain relatively vibrant.",

    "estimated_value_low": 2,
    "estimated_value_high": 5,
    "value_currency": "USD",

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 1.0,
      "series_year": 1.0,
      "issue_year": 0.0,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.95,
      "material": 1.0,
      "dimensions_mm": 0.95,
      "watermark": 0.85,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "pick_number": 0.98,
      "serial_number": 0.98,
      "front_description": 0.95,
      "back_description": 0.98,
      "historical_notes": 0.95,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.96,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble", "denomination": "10", "series_year": "1961", "series_name": "1961 Series", "series_range": "1961\u20131991", "issue_year": null, "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (1947 series)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u0411\u0430\u043d\u043a\u0430 \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "150x65", "watermark": "Stars pattern in clear field at left", "security_features": "microprint,intaglio", "color_palette": "#d4a276,#8b4513,#f5deb3", "portrait_subject": "Vladimir Lenin", "reverse_subject": "Vladimir Lenin", "themes": "statesman,communist", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-233", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Soviet 10 Ruble note from the 1961 series. The front features the denomination '10' with '\u0421\u0421\u0421\u0420' (USSR) and '\u0414\u0415\u0421\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Ten Rubles) text in Russian, along with multilingual denomination translations for the various Soviet republics. The text at center reads '\u041f\u041e\u0414\u0414\u0415\u041b\u041a\u0410 \u0411\u0418\u041b\u0415\u0422\u041e\u0412 \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u041e\u0413\u041e \u0411\u0410\u041d\u041a\u0410 \u0421\u0421\u0421\u0420 \u041f\u0420\u0415\u0421\u041b\u0415\u0414\u0423\u0415\u0422\u0421\u042f \u041f\u041e \u0417\u0410\u041a\u041e\u041d\u0423' (Counterfeiting of State Bank of the USSR notes is prosecuted by law). This series was issued during the 1961 monetary reform that redenominated the ruble at a rate of 10:1.", "back_description": "Vladimir Lenin (1870\u20131924), founder of the Soviet state, leader of the Bolshevik Revolution of 1917, and first head of the Soviet government. His portrait appears in profile facing left within an oval frame. The State Emblem of the USSR (hammer and sickle surrounded by wheat sheaves) appears at upper left. The denomination '\u0414\u0415\u0421\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Ten Rubles) and '\u0411\u0418\u041b\u0415\u0422 \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u041e\u0413\u041e \u0411\u0410\u041d\u041a\u0410 \u0421\u0421\u0421\u0420' (Note of the State Bank of the USSR) are prominently displayed. Lenin's image appeared on virtually all Soviet banknotes from 1938 onwards as the paramount symbol of the Soviet state.", "historical_notes": "This is a 10-ruble note from the 1961 series, issued by the State Bank of the USSR (\u0413\u043e\u0441\u0431\u0430\u043d\u043a \u0421\u0421\u0421\u0420). The 1961 monetary reform replaced the previous 1947 series at a rate of 10 old rubles to 1 new ruble, aimed at addressing post-war monetary issues. This series remained in circulation from 1961 until the dissolution of the Soviet Union in 1991, making it one of the longest-circulating Soviet note series. The design features Lenin on the reverse and multilingual text on the front reflecting the multi-ethnic composition of the USSR, with denominations written in the languages of the 15 Soviet republics. The serial number prefix '\u0441\u041e' is consistent with Goznak printing practices for this series. These notes were demonetized following the collapse of the USSR and replaced by Russian Federation rubles beginning in 1992\u20131993.", "language_script": "Cyrillic, Latin", "languages": "ru,uk,be,uz,kk,ka,az,lt,ro,lv,ky,tg,hy,tk,et", "serial_number": "\u0441\u041e1992842", "serial_prefix": "\u0441\u041e", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows circulation wear with visible folds and some soiling. Edges show minor wear. Colors remain relatively vibrant.", "estimated_value_low": 2, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 1.0, "series_year": 1.0, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.95, "material": 1.0, "dimensions_mm": 0.95, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.98, "serial_number": 0.98, "front_description": 0.95, "back_description": 0.98, "historical_notes": 0.95, "condition_grade": 0.85}, "overall_confidence": 0.96, "flags": []}

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


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:07:23
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet ruble",
    "denomination": "10 rubles",
    "series_year": "1961",
    "series_name": "Series 1961",
    "series_range": "1961–1991",
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet ruble (1947 series)",
    "successor_currency": "Russian ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственный банк СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "150x65",
    "watermark": "Ornamental rosette pattern in clear field at left",
    "security_features": "microprint,intaglio",
    "color_palette": "#f4a460,#f5deb3,#8b4513",

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

    "pick_number": "233a",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Geometric guilloche designs featuring ornamental rosettes and intricate line-work patterns typical of Soviet currency security printing. The text 'ДЕСЯТЬ РУБЛЕЙ' (Ten Rubles) appears prominently with the inscription 'ПОДДЕЛКА БИЛЕТОВ ГОСУДАРСТВЕННОГО БАНКА СССР ПРЕСЛЕДУЕТСЯ ПО ЗАКОНУ' (Forgery of State Bank of the USSR notes is prosecuted by law). The denomination '10' appears in multiple locations in Russian numerals. The note includes translations of 'Ten Rubles' in the languages of all Soviet Socialist Republics, reflecting the multinational composition of the USSR.",
    "back_description": "The text 'ТРИ РУБЛЯ' (Three Rubles) with geometric guilloche patterns and the numeral '3' appears prominently, along with multilingual text reading 'THREE RUBLES' in various Soviet national languages including Latvian, Lithuanian, Estonian, Georgian, Armenian, Azerbaijani, Kazakh, Uzbek, Turkmen, Tajik, Kyrgyz, and Moldavian. The security text warns against forgery in Russian. Note: This back appears to be from a different denomination (3 rubles) than the front (10 rubles), indicating a mismatched pair.",
    "historical_notes": "Series 1961 Soviet rubles were issued following Khrushchev's currency reform of 1961, which redenominated the ruble at a 10:1 ratio. This series remained in circulation throughout the final three decades of the Soviet Union (1961–1991) and was demonetized following the USSR's dissolution. The serial prefix 'КА' indicates a specific production series within the broader 1961 issue. These notes were printed by Goznak (Гознак), the Soviet state security printing works. The multilingual text on both sides reflects the official policy of recognizing the national languages of all fifteen Soviet Socialist Republics. The 1961 series is characterized by its predominantly geometric design without portraits, in contrast to earlier and later Soviet currency issues. This particular note shows signs of circulation. WARNING: The front and back images appear to show different denominations (10 rubles vs 3 rubles), which is inconsistent and suggests these may not be photographs of the same physical note.",
    "language_script": "Cyrillic, Latin, Georgian, Armenian",
    "languages": "ru,lv,lt,et,ka,hy,az,kk,uz,tk,tg,ky,ro",

    "serial_number": "КА 3762996",
    "serial_prefix": "КА",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "F",
    "condition_notes": "Note shows circulation wear with visible creasing and edge wear. Colors remain reasonably vibrant. Paper integrity intact.",

    "estimated_value_low": 2,
    "estimated_value_high": 10,
    "value_currency": "USD",

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 0.95,
      "series_name": 0.95,
      "series_year": 0.95,
      "issue_year": 0.0,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.9,
      "material": 0.95,
      "dimensions_mm": 0.85,
      "watermark": 0.85,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "pick_number": 0.85,
      "serial_number": 0.98,
      "front_description": 0.92,
      "back_description": 0.75,
      "historical_notes": 0.9,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.65,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet ruble", "denomination": "10 rubles", "series_year": "1961", "series_name": "Series 1961", "series_range": "1961\u20131991", "issue_year": null, "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet ruble (1947 series)", "successor_currency": "Russian ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0431\u0430\u043d\u043a \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "150x65", "watermark": "Ornamental rosette pattern in clear field at left", "security_features": "microprint,intaglio", "color_palette": "#f4a460,#f5deb3,#8b4513", "portrait_subject": null, "reverse_subject": null, "themes": "industry", "commemorative": false, "commemorative_occasion": null, "pick_number": "233a", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Geometric guilloche designs featuring ornamental rosettes and intricate line-work patterns typical of Soviet currency security printing. The text '\u0414\u0415\u0421\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Ten Rubles) appears prominently with the inscription '\u041f\u041e\u0414\u0414\u0415\u041b\u041a\u0410 \u0411\u0418\u041b\u0415\u0422\u041e\u0412 \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u041e\u0413\u041e \u0411\u0410\u041d\u041a\u0410 \u0421\u0421\u0421\u0420 \u041f\u0420\u0415\u0421\u041b\u0415\u0414\u0423\u0415\u0422\u0421\u042f \u041f\u041e \u0417\u0410\u041a\u041e\u041d\u0423' (Forgery of State Bank of the USSR notes is prosecuted by law). The denomination '10' appears in multiple locations in Russian numerals. The note includes translations of 'Ten Rubles' in the languages of all Soviet Socialist Republics, reflecting the multinational composition of the USSR.", "back_description": "The text '\u0422\u0420\u0418 \u0420\u0423\u0411\u041b\u042f' (Three Rubles) with geometric guilloche patterns and the numeral '3' appears prominently, along with multilingual text reading 'THREE RUBLES' in various Soviet national languages including Latvian, Lithuanian, Estonian, Georgian, Armenian, Azerbaijani, Kazakh, Uzbek, Turkmen, Tajik, Kyrgyz, and Moldavian. The security text warns against forgery in Russian. Note: This back appears to be from a different denomination (3 rubles) than the front (10 rubles), indicating a mismatched pair.", "historical_notes": "Series 1961 Soviet rubles were issued following Khrushchev's currency reform of 1961, which redenominated the ruble at a 10:1 ratio. This series remained in circulation throughout the final three decades of the Soviet Union (1961\u20131991) and was demonetized following the USSR's dissolution. The serial prefix '\u041a\u0410' indicates a specific production series within the broader 1961 issue. These notes were printed by Goznak (\u0413\u043e\u0437\u043d\u0430\u043a), the Soviet state security printing works. The multilingual text on both sides reflects the official policy of recognizing the national languages of all fifteen Soviet Socialist Republics. The 1961 series is characterized by its predominantly geometric design without portraits, in contrast to earlier and later Soviet currency issues. This particular note shows signs of circulation. WARNING: The front and back images appear to show different denominations (10 rubles vs 3 rubles), which is inconsistent and suggests these may not be photographs of the same physical note.", "language_script": "Cyrillic, Latin, Georgian, Armenian", "languages": "ru,lv,lt,et,ka,hy,az,kk,uz,tk,tg,ky,ro", "serial_number": "\u041a\u0410 3762996", "serial_prefix": "\u041a\u0410", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Note shows circulation wear with visible creasing and edge wear. Colors remain reasonably vibrant. Paper integrity intact.", "estimated_value_low": 2, "estimated_value_high": 10, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 0.95, "series_name": 0.95, "series_year": 0.95, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.85, "serial_number": 0.98, "front_description": 0.92, "back_description": 0.75, "historical_notes": 0.9, "condition_grade": 0.8}, "overall_confidence": 0.65, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 0.95, "series_name": 0.95, "series_year": 0.95, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.85, "serial_number": 0.98, "front_description": 0.92, "back_description": 0.75, "historical_notes": 0.9, "condition_grade": 0.8}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:07:23
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": null,
    "denomination": null,
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

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

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

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

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

    "front_description": "Soviet State Bank Note for 10 Rubles (ДЕСЯТЬ РУБЛЕЙ) from the USSR. Features denomination '10' prominently displayed with ornate guilloche patterns. Text 'СССР' (USSR) appears at top. The note includes the denomination in multiple languages of Soviet republics including Ukrainian (карбованців), Uzbek (сўм/sum), Kazakh, Azerbaijani (manat), Lithuanian (rublių), Latvian (rubļu), Kyrgyz (сом), Tajik, Turkmen (manat), and Estonian (rubla). Anti-counterfeiting warning in Russian states that forgery of State Bank notes is prosecuted by law.",

    "back_description": "Soviet Treasury Note for 3 Rubles (ТРИ РУБЛЯ). This appears to be a MISMATCHED note - the back shows a different denomination (3 rubles) than the front (10 rubles). Features ornate guilloche design with large numeral '3' and denomination text in multiple Soviet republic languages. Contains anti-counterfeiting warning about prosecution for forgery of state treasury notes.",

    "historical_notes": "CRITICAL: These images show a MISMATCHED PAIR - the front is a 10 Ruble State Bank Note while the back is a 3 Ruble Treasury Note. Both notes are from the 1961 Soviet currency reform series, which remained in circulation until the dissolution of the USSR in 1991. The 1961 series was notable for its longevity and represented the stable Soviet currency following the 1961 monetary reform that revalued the ruble at 10:1. The multilingual text on Soviet banknotes reflected the official languages of the 15 Soviet Socialist Republics. These notes were printed by Goznak, the Soviet state security printing works.",

    "language_script": "Cyrillic, Latin, Georgian, Armenian",
    "languages": "ru,uk,uz,kk,az,lt,lv,ky,tg,tk,et,ka,hy",

    "serial_number": "кА 3762996",
    "serial_prefix": "кА",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Moderate circulation wear, some discoloration and staining visible, particularly on left side. Paper shows age toning. MISMATCHED FRONT AND BACK - not from the same banknote.",

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

    "field_confidence": {
      "country": 0.95,
      "currency": 0.95,
      "denomination": 0.3,
      "series_name": 0.85,
      "series_year": 0.9,
      "issue_year": 0.7,
      "issuer": 0.9,
      "signatures": 0.0,
      "printer": 0.85,
      "material": 0.95,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.0,
      "pick_number": 0.0,
      "serial_number": 0.9,
      "front_description": 0.85,
      "back_description": 0.85,
      "historical_notes": 0.8,
      "condition_grade": 0.7
    },
    "overall_confidence": 0.35,
    "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": "Soviet State Bank Note for 10 Rubles (\u0414\u0415\u0421\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419) from the USSR. Features denomination '10' prominently displayed with ornate guilloche patterns. Text '\u0421\u0421\u0421\u0420' (USSR) appears at top. The note includes the denomination in multiple languages of Soviet republics including Ukrainian (\u043a\u0430\u0440\u0431\u043e\u0432\u0430\u043d\u0446\u0456\u0432), Uzbek (\u0441\u045e\u043c/sum), Kazakh, Azerbaijani (manat), Lithuanian (rubli\u0173), Latvian (rub\u013cu), Kyrgyz (\u0441\u043e\u043c), Tajik, Turkmen (manat), and Estonian (rubla). Anti-counterfeiting warning in Russian states that forgery of State Bank notes is prosecuted by law.", "back_description": "Soviet Treasury Note for 3 Rubles (\u0422\u0420\u0418 \u0420\u0423\u0411\u041b\u042f). This appears to be a MISMATCHED note - the back shows a different denomination (3 rubles) than the front (10 rubles). Features ornate guilloche design with large numeral '3' and denomination text in multiple Soviet republic languages. Contains anti-counterfeiting warning about prosecution for forgery of state treasury notes.", "historical_notes": "CRITICAL: These images show a MISMATCHED PAIR - the front is a 10 Ruble State Bank Note while the back is a 3 Ruble Treasury Note. Both notes are from the 1961 Soviet currency reform series, which remained in circulation until the dissolution of the USSR in 1991. The 1961 series was notable for its longevity and represented the stable Soviet currency following the 1961 monetary reform that revalued the ruble at 10:1. The multilingual text on Soviet banknotes reflected the official languages of the 15 Soviet Socialist Republics. These notes were printed by Goznak, the Soviet state security printing works.", "language_script": "Cyrillic, Latin, Georgian, Armenian", "languages": "ru,uk,uz,kk,az,lt,lv,ky,tg,tk,et,ka,hy", "serial_number": "\u043a\u0410 3762996", "serial_prefix": "\u043a\u0410", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Moderate circulation wear, some discoloration and staining visible, particularly on left side. Paper shows age toning. MISMATCHED FRONT AND BACK - not from the same banknote.", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.95, "currency": 0.95, "denomination": 0.3, "series_name": 0.85, "series_year": 0.9, "issue_year": 0.7, "issuer": 0.9, "signatures": 0.0, "printer": 0.85, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.9, "front_description": 0.85, "back_description": 0.85, "historical_notes": 0.8, "condition_grade": 0.7}, "overall_confidence": 0.35, "flags": ["mismatched_pair"]}

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


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:07:59
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet ruble",
    "denomination": "3 rubles",
    "series_year": "1961",
    "series_name": "Series 1961",
    "series_range": "1961–1991",
    "issue_year": "1961",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet ruble (1947 series)",
    "successor_currency": "Russian ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственный казначейский билет СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "125x62",
    "watermark": "Stars pattern",
    "security_features": "intaglio,microprint,raised_print",
    "color_palette": "#d4c5a0,#708090,#8b4513",

    "portrait_subject": null,
    "reverse_subject": "Spasskaya Tower of the Moscow Kremlin",
    "themes": "architecture,government",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "223",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "The State coat of arms of the Soviet Union (hammer and sickle within wheat sheaves and red star) at left, with the denomination THREE RUBLES (ТРИ РУБЛЯ) prominently displayed. The front features a view of the Kremlin complex with its distinctive towers and cathedrals rendered in fine engraving. The year 1961 appears in the lower left legal tender text panel. This denomination was part of the 1961 currency reform that revalued the Soviet ruble at 10:1, replacing the 1947 series during Khrushchev's economic modernization efforts.",

    "back_description": "The Spasskaya Tower of the Moscow Kremlin, the most iconic of the Kremlin's towers, built in 1491 by Italian architect Pietro Antonio Solari and crowned with its distinctive ruby star in Soviet times. The tower faces Red Square and houses the main ceremonial gate to the Kremlin. The denomination FIVE RUBLES (ПЯТЬ РУБЛЕЙ) appears prominently at center. The State coat of arms appears at upper left. The legal tender text reaffirms that State Treasury Notes are secured by all assets of the USSR and are valid throughout Soviet territory for all institutions, enterprises, and individuals at face value.",

    "historical_notes": "Series 1961, issued January 1, 1961, as part of Khrushchev's monetary reform that redenominated the Soviet ruble at 10:1 (10 old rubles = 1 new ruble). This series replaced the 1947 Stalin-era notes and remained in circulation until the dissolution of the USSR in 1991. The 1961 series introduced more standardized designs across denominations featuring Soviet architectural landmarks and the State coat of arms. The printed year 1961 identifies this as an original issue of the series. The 3-ruble denomination was common in everyday circulation throughout the Soviet period. All notes of this series were demonetized with the fall of the USSR and the introduction of Russian Federation currency. Pick catalogue number P-223 is well-documented for this issue.",

    "language_script": "Cyrillic",
    "languages": "ru",

    "serial_number": "чп 1559253",
    "serial_prefix": "чп",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note shows moderate circulation with some soiling and handling marks, typical for Soviet-era currency that saw heavy use",

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

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

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet ruble", "denomination": "3 rubles", "series_year": "1961", "series_name": "Series 1961", "series_range": "1961\u20131991", "issue_year": "1961", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet ruble (1947 series)", "successor_currency": "Russian ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u043a\u0430\u0437\u043d\u0430\u0447\u0435\u0439\u0441\u043a\u0438\u0439 \u0431\u0438\u043b\u0435\u0442 \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "125x62", "watermark": "Stars pattern", "security_features": "intaglio,microprint,raised_print", "color_palette": "#d4c5a0,#708090,#8b4513", "portrait_subject": null, "reverse_subject": "Spasskaya Tower of the Moscow Kremlin", "themes": "architecture,government", "commemorative": false, "commemorative_occasion": null, "pick_number": "223", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The State coat of arms of the Soviet Union (hammer and sickle within wheat sheaves and red star) at left, with the denomination THREE RUBLES (\u0422\u0420\u0418 \u0420\u0423\u0411\u041b\u042f) prominently displayed. The front features a view of the Kremlin complex with its distinctive towers and cathedrals rendered in fine engraving. The year 1961 appears in the lower left legal tender text panel. This denomination was part of the 1961 currency reform that revalued the Soviet ruble at 10:1, replacing the 1947 series during Khrushchev's economic modernization efforts.", "back_description": "The Spasskaya Tower of the Moscow Kremlin, the most iconic of the Kremlin's towers, built in 1491 by Italian architect Pietro Antonio Solari and crowned with its distinctive ruby star in Soviet times. The tower faces Red Square and houses the main ceremonial gate to the Kremlin. The denomination FIVE RUBLES (\u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419) appears prominently at center. The State coat of arms appears at upper left. The legal tender text reaffirms that State Treasury Notes are secured by all assets of the USSR and are valid throughout Soviet territory for all institutions, enterprises, and individuals at face value.", "historical_notes": "Series 1961, issued January 1, 1961, as part of Khrushchev's monetary reform that redenominated the Soviet ruble at 10:1 (10 old rubles = 1 new ruble). This series replaced the 1947 Stalin-era notes and remained in circulation until the dissolution of the USSR in 1991. The 1961 series introduced more standardized designs across denominations featuring Soviet architectural landmarks and the State coat of arms. The printed year 1961 identifies this as an original issue of the series. The 3-ruble denomination was common in everyday circulation throughout the Soviet period. All notes of this series were demonetized with the fall of the USSR and the introduction of Russian Federation currency. Pick catalogue number P-223 is well-documented for this issue.", "language_script": "Cyrillic", "languages": "ru", "serial_number": "\u0447\u043f 1559253", "serial_prefix": "\u0447\u043f", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows moderate circulation with some soiling and handling marks, typical for Soviet-era currency that saw heavy use", "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 1.0, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.95, "material": 1.0, "dimensions_mm": 0.95, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.98, "serial_number": 0.95, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.85}, "overall_confidence": 0.95, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 1.0, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.95, "material": 1.0, "dimensions_mm": 0.95, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.98, "serial_number": 0.95, "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 07:08:01
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
    "denomination": "5",
    "series_year": "1961",
    "series_name": "State Treasury Notes Series 1961",
    "series_range": "1961-1991",
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (1947 series)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственный Казначейский Билет",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "114x57",
    "watermark": "Stars pattern",
    "security_features": "guilloche_patterns,microprint",
    "color_palette": "#d4af37,#8b4513,#f5deb3",

    "portrait_subject": null,
    "reverse_subject": "State Emblem of the Soviet Union",
    "themes": "statesman,industry",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-224",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "State Treasury Note of 5 rubles issued by the State Bank of the USSR. The note features the text 'ПЯТЬ РУБЛЕЙ' (Five Rubles) prominently at center, with denomination numerals '5' in ornate frames on both sides. The front carries multilingual inscriptions representing the fifteen Soviet republics, including Russian, Ukrainian, Belarusian, Georgian, Armenian, Azeri, Uzbek, Kazakh, Tajik, Turkmen, Kyrgyz, Lithuanian, Latvian, Estonian, and Moldovan. This reflects the Soviet policy of representing all constituent republics on state currency. The elaborate guilloche patterns and ornamental design are characteristic of Soviet currency security printing.",
    "back_description": "State Emblem of the Soviet Union (hammer and sickle within a wreath of wheat, topped with a red star) prominently displayed at left. The text 'ГОСУДАРСТВЕННЫЙ КАЗНАЧЕЙСКИЙ БИЛЕТ' (State Treasury Note) appears at top, with 'ОДИН РУБЛЬ' (One Ruble) at center - this appears to be a design template error as the front clearly shows 5 rubles. The back includes legal tender text stating these notes are accepted throughout the USSR and all territories. The brown-toned color scheme and geometric patterns are typical of Soviet currency design from this era.",
    "historical_notes": "The 1961 Soviet ruble reform introduced a new currency series following Khrushchev's monetary reform, which exchanged old rubles at a 10:1 ratio. This 5-ruble note belongs to the longest-running series of Soviet paper currency, remaining in circulation for three decades until the dissolution of the USSR in 1991. The series was designed to present a unified Soviet identity through multilingual text representing all fifteen republics. Serial number format with Cyrillic prefix letters (ДД in this case) followed by seven digits was standard for this series. These notes were printed by Goznak (the Soviet state security printer) and featured advanced anti-counterfeiting measures for their time. The 1961 series remained legal tender through multiple political changes until replaced by Russian Federation currency. No documented serial-year encoding exists for this series; dating requires reference to documented production records or signature analysis.",
    "language_script": "Cyrillic, Latin, Georgian, Armenian",
    "languages": "ru,uk,be,ka,hy,az,uz,kk,tg,tk,ky,lt,lv,et,ro",

    "serial_number": "ДД 4714507",
    "serial_prefix": "ДД",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "F",
    "condition_notes": "Circulated note with visible wear, creasing, and discoloration at edges. Paper intact but showing age-related toning.",

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

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

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble", "denomination": "5", "series_year": "1961", "series_name": "State Treasury Notes Series 1961", "series_range": "1961-1991", "issue_year": null, "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (1947 series)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u041a\u0430\u0437\u043d\u0430\u0447\u0435\u0439\u0441\u043a\u0438\u0439 \u0411\u0438\u043b\u0435\u0442", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "114x57", "watermark": "Stars pattern", "security_features": "guilloche_patterns,microprint", "color_palette": "#d4af37,#8b4513,#f5deb3", "portrait_subject": null, "reverse_subject": "State Emblem of the Soviet Union", "themes": "statesman,industry", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-224", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "State Treasury Note of 5 rubles issued by the State Bank of the USSR. The note features the text '\u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Five Rubles) prominently at center, with denomination numerals '5' in ornate frames on both sides. The front carries multilingual inscriptions representing the fifteen Soviet republics, including Russian, Ukrainian, Belarusian, Georgian, Armenian, Azeri, Uzbek, Kazakh, Tajik, Turkmen, Kyrgyz, Lithuanian, Latvian, Estonian, and Moldovan. This reflects the Soviet policy of representing all constituent republics on state currency. The elaborate guilloche patterns and ornamental design are characteristic of Soviet currency security printing.", "back_description": "State Emblem of the Soviet Union (hammer and sickle within a wreath of wheat, topped with a red star) prominently displayed at left. The text '\u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u042b\u0419 \u041a\u0410\u0417\u041d\u0410\u0427\u0415\u0419\u0421\u041a\u0418\u0419 \u0411\u0418\u041b\u0415\u0422' (State Treasury Note) appears at top, with '\u041e\u0414\u0418\u041d \u0420\u0423\u0411\u041b\u042c' (One Ruble) at center - this appears to be a design template error as the front clearly shows 5 rubles. The back includes legal tender text stating these notes are accepted throughout the USSR and all territories. The brown-toned color scheme and geometric patterns are typical of Soviet currency design from this era.", "historical_notes": "The 1961 Soviet ruble reform introduced a new currency series following Khrushchev's monetary reform, which exchanged old rubles at a 10:1 ratio. This 5-ruble note belongs to the longest-running series of Soviet paper currency, remaining in circulation for three decades until the dissolution of the USSR in 1991. The series was designed to present a unified Soviet identity through multilingual text representing all fifteen republics. Serial number format with Cyrillic prefix letters (\u0414\u0414 in this case) followed by seven digits was standard for this series. These notes were printed by Goznak (the Soviet state security printer) and featured advanced anti-counterfeiting measures for their time. The 1961 series remained legal tender through multiple political changes until replaced by Russian Federation currency. No documented serial-year encoding exists for this series; dating requires reference to documented production records or signature analysis.", "language_script": "Cyrillic, Latin, Georgian, Armenian", "languages": "ru,uk,be,ka,hy,az,uz,kk,tg,tk,ky,lt,lv,et,ro", "serial_number": "\u0414\u0414 4714507", "serial_prefix": "\u0414\u0414", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Circulated note with visible wear, creasing, and discoloration at edges. Paper intact but showing age-related toning.", "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 0.95, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.9, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.75, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.95, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.85, "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": 0.95, "series_year": 0.95, "issue_year": 0.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.9, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.75, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.95, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.85, "historical_notes": 0.9, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:08:02
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
    "denomination": "1",
    "series_year": "1961",
    "series_name": "1961 Soviet Ruble Reform Series",
    "series_range": "1961–1991",
    "issue_year": "1991",
    "era": "1990_present",
    "legal_status": "demonetized",
    "legal_status_date": "1993",
    "predecessor_currency": "Soviet Ruble (1947 series)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственный банк СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "104x50",
    "watermark": "Stars pattern",
    "security_features": "microprint,intaglio",
    "color_palette": "#f5deb3,#8b4513,#556b2f",

    "portrait_subject": null,
    "reverse_subject": "State Emblem of the Soviet Union",
    "themes": "statesman,industry",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-237",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "The front features the denomination '1 рубль' (1 ruble) in large ornamental Cyrillic text with the inscription 'СССР' (USSR) at top right. The text panel at center right displays the denomination in multiple languages of the Soviet republics (Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kirghiz, Tajik, Armenian, Turkmen, and Estonian), reflecting the multinational character of the Soviet Union. The note includes the text 'ПОДДЕЛКА ГОСУДАРСТВЕННЫХ КАЗНАЧЕЙСКИХ БИЛЕТОВ ПРЕСЛЕДУЕТСЯ ПО ЗАКОНУ' (Counterfeiting of state treasury notes is punishable by law). This was the lowest denomination of the 1961 reform series, which dramatically revalued the ruble at 10:1.",

    "back_description": "The reverse displays the State Emblem of the Soviet Union (coat of arms) at left, featuring the hammer and sickle on a globe with wheat sheaves, ribbons representing the fifteen Soviet republics, and the rising sun. The text 'БИЛЕТ ГОСУДАРСТВЕННОГО БАНКА' (State Bank Note) appears at top. The date '1991' is printed at center bottom, indicating this is a late printing of the 1961 series design. The text box at lower left states that banknotes are backed by gold, precious metals, and other assets of the State Bank. Serial number ЕЧ 3535986 visible at right.",

    "historical_notes": "This 1 ruble note belongs to the 1961 Soviet Ruble Reform Series, which was introduced to combat inflation and simplify currency following the post-war economic recovery. The series remained in circulation from 1961 until the dissolution of the USSR in 1991. This particular note was printed in 1991, the final year of the Soviet Union's existence, making it one of the last issues before the state's collapse. The 1961 reform exchanged old rubles for new ones at a rate of 10:1. After the USSR dissolved in December 1991, these notes continued to circulate briefly in post-Soviet states before being replaced by new national currencies. In Russia, Soviet rubles were demonetized in 1993 when the Bank of Russia introduced its own ruble series. The multilingual denomination text reflects Soviet policy of recognizing the languages of constituent republics. Pick catalogue reference P-237 covers the 1991-dated issue of this design.",

    "language_script": "Cyrillic, Latin",
    "languages": "ru,be,uz,kk,ka,az,lt,ro,lv,ky,tg,hy,tk,et",

    "serial_number": "ЕЧ 3535986",
    "serial_prefix": "ЕЧ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "F",
    "condition_notes": "Note shows visible circulation wear, fold marks, and some discoloration on the left margin. Overall still intact with readable text and intact edges.",

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

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.95,
      "series_year": 0.95,
      "issue_year": 1.0,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.9,
      "material": 0.95,
      "dimensions_mm": 0.9,
      "watermark": 0.85,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "pick_number": 0.95,
      "serial_number": 0.95,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.94,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble", "denomination": "1", "series_year": "1961", "series_name": "1961 Soviet Ruble Reform Series", "series_range": "1961\u20131991", "issue_year": "1991", "era": "1990_present", "legal_status": "demonetized", "legal_status_date": "1993", "predecessor_currency": "Soviet Ruble (1947 series)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0431\u0430\u043d\u043a \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "104x50", "watermark": "Stars pattern", "security_features": "microprint,intaglio", "color_palette": "#f5deb3,#8b4513,#556b2f", "portrait_subject": null, "reverse_subject": "State Emblem of the Soviet Union", "themes": "statesman,industry", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-237", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The front features the denomination '1 \u0440\u0443\u0431\u043b\u044c' (1 ruble) in large ornamental Cyrillic text with the inscription '\u0421\u0421\u0421\u0420' (USSR) at top right. The text panel at center right displays the denomination in multiple languages of the Soviet republics (Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kirghiz, Tajik, Armenian, Turkmen, and Estonian), reflecting the multinational character of the Soviet Union. The note includes the text '\u041f\u041e\u0414\u0414\u0415\u041b\u041a\u0410 \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u042b\u0425 \u041a\u0410\u0417\u041d\u0410\u0427\u0415\u0419\u0421\u041a\u0418\u0425 \u0411\u0418\u041b\u0415\u0422\u041e\u0412 \u041f\u0420\u0415\u0421\u041b\u0415\u0414\u0423\u0415\u0422\u0421\u042f \u041f\u041e \u0417\u0410\u041a\u041e\u041d\u0423' (Counterfeiting of state treasury notes is punishable by law). This was the lowest denomination of the 1961 reform series, which dramatically revalued the ruble at 10:1.", "back_description": "The reverse displays the State Emblem of the Soviet Union (coat of arms) at left, featuring the hammer and sickle on a globe with wheat sheaves, ribbons representing the fifteen Soviet republics, and the rising sun. The text '\u0411\u0418\u041b\u0415\u0422 \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u041e\u0413\u041e \u0411\u0410\u041d\u041a\u0410' (State Bank Note) appears at top. The date '1991' is printed at center bottom, indicating this is a late printing of the 1961 series design. The text box at lower left states that banknotes are backed by gold, precious metals, and other assets of the State Bank. Serial number \u0415\u0427 3535986 visible at right.", "historical_notes": "This 1 ruble note belongs to the 1961 Soviet Ruble Reform Series, which was introduced to combat inflation and simplify currency following the post-war economic recovery. The series remained in circulation from 1961 until the dissolution of the USSR in 1991. This particular note was printed in 1991, the final year of the Soviet Union's existence, making it one of the last issues before the state's collapse. The 1961 reform exchanged old rubles for new ones at a rate of 10:1. After the USSR dissolved in December 1991, these notes continued to circulate briefly in post-Soviet states before being replaced by new national currencies. In Russia, Soviet rubles were demonetized in 1993 when the Bank of Russia introduced its own ruble series. The multilingual denomination text reflects Soviet policy of recognizing the languages of constituent republics. Pick catalogue reference P-237 covers the 1991-dated issue of this design.", "language_script": "Cyrillic, Latin", "languages": "ru,be,uz,kk,ka,az,lt,ro,lv,ky,tg,hy,tk,et", "serial_number": "\u0415\u0427 3535986", "serial_prefix": "\u0415\u0427", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Note shows visible circulation wear, fold marks, and some discoloration on the left margin. Overall still intact with readable text and intact edges.", "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 0.95, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.95, "serial_number": 0.95, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.85}, "overall_confidence": 0.94, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 0.95, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.95, "serial_number": 0.95, "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 07:08:18
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
    "denomination": "1 Ruble / 25 Rubles",
    "series_year": "1961",
    "series_name": "State Bank of the USSR Series of 1961",
    "series_range": "1961–1991",
    "issue_year": "1961",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (pre-1961 reform)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Билет Государственного Банка СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "110x55",
    "watermark": "Stars pattern in clear field",
    "security_features": "intaglio,microprint",
    "color_palette": "#f5deb3,#8b4789,#2f4f4f",

    "portrait_subject": "Vladimir Lenin",
    "reverse_subject": "State Emblem of the USSR",
    "themes": "statesman,communist,political",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "237a",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "The note shows the denomination '1 Ruble' (ОДИН РУБЛЬ) in Russian, with '1' repeated in ornamental rosettes. The text reads 'USSR' (СССР) at top and 'ПОДДЕЛКА БИЛЕТОВ ГОСУДАРСТВЕННОГО БАНКА СССР ПРЕСЛЕДУЕТСЯ ПО ЗАКОНУ' (Counterfeiting of State Bank of the USSR notes is prosecuted by law) at bottom. This is the front of a 1 ruble note from the 1961 Soviet currency reform, which redenominated the ruble at 10:1, replacing the Stalin-era currency with a new series that remained in circulation until the Soviet Union's dissolution.",
    "back_description": "Vladimir Lenin (1870–1924), founder of the Soviet Union, leader of the Bolshevik Revolution of 1917, and first head of the Soviet state. His portrait appears at left in profile, facing right. The State Emblem of the USSR (hammer and sickle surrounded by wheat sheaves, topped with a star) is displayed at center top, with text reading 'БИЛЕТ ГОСУДАРСТВЕННОГО БАНКА СССР' (State Bank of the USSR Note) and 'ДВАДЦАТЬ ПЯТЬ РУБЛЕЙ' (Twenty-Five Rubles). The year '1961' appears at lower right. The denomination '25' is shown in a central ornamental panel. The text below states that banknotes are secured by gold, precious metals, and other assets of the State Bank.",
    "historical_notes": "This is a mismatched pair: the front shows a 1 ruble note (ОДИН РУБЛЬ) while the back shows a 25 ruble note (ДВАДЦАТЬ ПЯТЬ РУБЛЕЙ), both from the State Bank of the USSR Series of 1961. The 1961 currency reform was implemented under Khrushchev to combat inflation and replace the large-denomination Stalin-era notes. The reform exchanged old rubles for new at a 10:1 ratio, with old banknotes dated 1947, 1957, and 1958 being replaced. The 1961 series featured Lenin's portrait on all denominations and remained the standard Soviet currency until the USSR's dissolution in 1991. These notes were printed by Goznak (the Soviet state security printing works). Pick-237a refers to the 1961 series 25 ruble note with the specific security features and design elements of this issue.",
    "language_script": "Cyrillic",
    "languages": "ru",

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

    "condition_grade": "XF",
    "condition_notes": "Note shows light handling and circulation wear but retains good detail and color",

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

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.95,
      "series_year": 1.0,
      "issue_year": 1.0,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.9,
      "material": 0.95,
      "dimensions_mm": 0.85,
      "watermark": 0.7,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "pick_number": 0.9,
      "serial_number": 0.0,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.65,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble", "denomination": "1 Ruble / 25 Rubles", "series_year": "1961", "series_name": "State Bank of the USSR Series of 1961", "series_range": "1961\u20131991", "issue_year": "1961", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (pre-1961 reform)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0411\u0438\u043b\u0435\u0442 \u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u0411\u0430\u043d\u043a\u0430 \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "110x55", "watermark": "Stars pattern in clear field", "security_features": "intaglio,microprint", "color_palette": "#f5deb3,#8b4789,#2f4f4f", "portrait_subject": "Vladimir Lenin", "reverse_subject": "State Emblem of the USSR", "themes": "statesman,communist,political", "commemorative": false, "commemorative_occasion": null, "pick_number": "237a", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The note shows the denomination '1 Ruble' (\u041e\u0414\u0418\u041d \u0420\u0423\u0411\u041b\u042c) in Russian, with '1' repeated in ornamental rosettes. The text reads 'USSR' (\u0421\u0421\u0421\u0420) at top and '\u041f\u041e\u0414\u0414\u0415\u041b\u041a\u0410 \u0411\u0418\u041b\u0415\u0422\u041e\u0412 \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u041e\u0413\u041e \u0411\u0410\u041d\u041a\u0410 \u0421\u0421\u0421\u0420 \u041f\u0420\u0415\u0421\u041b\u0415\u0414\u0423\u0415\u0422\u0421\u042f \u041f\u041e \u0417\u0410\u041a\u041e\u041d\u0423' (Counterfeiting of State Bank of the USSR notes is prosecuted by law) at bottom. This is the front of a 1 ruble note from the 1961 Soviet currency reform, which redenominated the ruble at 10:1, replacing the Stalin-era currency with a new series that remained in circulation until the Soviet Union's dissolution.", "back_description": "Vladimir Lenin (1870\u20131924), founder of the Soviet Union, leader of the Bolshevik Revolution of 1917, and first head of the Soviet state. His portrait appears at left in profile, facing right. The State Emblem of the USSR (hammer and sickle surrounded by wheat sheaves, topped with a star) is displayed at center top, with text reading '\u0411\u0418\u041b\u0415\u0422 \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u041e\u0413\u041e \u0411\u0410\u041d\u041a\u0410 \u0421\u0421\u0421\u0420' (State Bank of the USSR Note) and '\u0414\u0412\u0410\u0414\u0426\u0410\u0422\u042c \u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Twenty-Five Rubles). The year '1961' appears at lower right. The denomination '25' is shown in a central ornamental panel. The text below states that banknotes are secured by gold, precious metals, and other assets of the State Bank.", "historical_notes": "This is a mismatched pair: the front shows a 1 ruble note (\u041e\u0414\u0418\u041d \u0420\u0423\u0411\u041b\u042c) while the back shows a 25 ruble note (\u0414\u0412\u0410\u0414\u0426\u0410\u0422\u042c \u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419), both from the State Bank of the USSR Series of 1961. The 1961 currency reform was implemented under Khrushchev to combat inflation and replace the large-denomination Stalin-era notes. The reform exchanged old rubles for new at a 10:1 ratio, with old banknotes dated 1947, 1957, and 1958 being replaced. The 1961 series featured Lenin's portrait on all denominations and remained the standard Soviet currency until the USSR's dissolution in 1991. These notes were printed by Goznak (the Soviet state security printing works). Pick-237a refers to the 1961 series 25 ruble note with the specific security features and design elements of this issue.", "language_script": "Cyrillic", "languages": "ru", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "XF", "condition_notes": "Note shows light handling and circulation wear but retains good detail and color", "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.7, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.9, "serial_number": 0.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.8}, "overall_confidence": 0.65, "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": 0.9, "material": 0.95, "dimensions_mm": 0.85, "watermark": 0.7, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.9, "serial_number": 0.0, "front_description": 0.95, "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 07:08:18
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": "Soviet Ruble",
    "denomination": null,
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": null,
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственный Банк СССР",
    "signatures": null,
    "printer": "Goznak",
    "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": "This image shows a 1 Ruble note from the final Soviet series (1991), featuring ornate guilloche patterns and the large numeral '1' with 'ОДИН РУБЛЬ' (One Ruble) in Cyrillic. The note bears 'СССР' (USSR) at top and includes the anti-counterfeiting warning 'ПОДДЕЛКА БИЛЕТОВ ГОСУДАРСТВЕННОГО БАНКА СССР ПРЕСЛЕДУЕТСЯ ПО ЗАКОНУ' (Counterfeiting of State Bank of the USSR notes is prosecuted by law).",
    "back_description": "This image shows a 25 Ruble note from the 1961 Soviet series featuring Vladimir Ilyich Lenin (1870–1924), founder of the Soviet state and leader of the October Revolution. The portrait shows Lenin in left-facing profile within an oval frame. Above is the State Emblem of the Soviet Union with hammer and sickle, globe, and wheat sheaves. The text reads 'БИЛЕТ ГОСУДАРСТВЕННОГО БАНКА СССР' (State Bank of the USSR Note) and 'ДВАДЦАТЬ ПЯТЬ РУБЛЕЙ' (Twenty-Five Rubles). The year 1961 is printed at lower right.",
    "historical_notes": "MISMATCHED PAIR: The front image shows a 1 Ruble note from the 1991 Soviet series (P-237a), while the back image shows a 25 Ruble note from the 1961 series (P-234b). These are NOT the same banknote. The 1961 series was introduced following the 1961 monetary reform at a 10:1 redenomination and remained in circulation until the dissolution of the USSR in 1991. The 1991 series was the final Soviet currency issue before the collapse. Both series were demonetized following the end of the Soviet Union.",
    "language_script": "Cyrillic",
    "languages": "ru",

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

    "condition_grade": null,
    "condition_notes": "Front image (1 Ruble) appears UNC; Back image (25 Rubles) shows circulation wear, approximately VF",

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

    "field_confidence": {
      "country": 0.95,
      "currency": 0.95,
      "denomination": 0.0,
      "series_name": 0.5,
      "series_year": 0.5,
      "issue_year": 0.5,
      "issuer": 0.95,
      "signatures": 0.0,
      "printer": 0.85,
      "material": 0.95,
      "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": 0.85,
      "back_description": 0.90,
      "historical_notes": 0.90,
      "condition_grade": 0.0
    },
    "overall_confidence": 0.3,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": null, "currency": "Soviet Ruble", "denomination": null, "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": null, "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0411\u0430\u043d\u043a \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "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": "This image shows a 1 Ruble note from the final Soviet series (1991), featuring ornate guilloche patterns and the large numeral '1' with '\u041e\u0414\u0418\u041d \u0420\u0423\u0411\u041b\u042c' (One Ruble) in Cyrillic. The note bears '\u0421\u0421\u0421\u0420' (USSR) at top and includes the anti-counterfeiting warning '\u041f\u041e\u0414\u0414\u0415\u041b\u041a\u0410 \u0411\u0418\u041b\u0415\u0422\u041e\u0412 \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u041e\u0413\u041e \u0411\u0410\u041d\u041a\u0410 \u0421\u0421\u0421\u0420 \u041f\u0420\u0415\u0421\u041b\u0415\u0414\u0423\u0415\u0422\u0421\u042f \u041f\u041e \u0417\u0410\u041a\u041e\u041d\u0423' (Counterfeiting of State Bank of the USSR notes is prosecuted by law).", "back_description": "This image shows a 25 Ruble note from the 1961 Soviet series featuring Vladimir Ilyich Lenin (1870\u20131924), founder of the Soviet state and leader of the October Revolution. The portrait shows Lenin in left-facing profile within an oval frame. Above is the State Emblem of the Soviet Union with hammer and sickle, globe, and wheat sheaves. The text reads '\u0411\u0418\u041b\u0415\u0422 \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u041e\u0413\u041e \u0411\u0410\u041d\u041a\u0410 \u0421\u0421\u0421\u0420' (State Bank of the USSR Note) and '\u0414\u0412\u0410\u0414\u0426\u0410\u0422\u042c \u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Twenty-Five Rubles). The year 1961 is printed at lower right.", "historical_notes": "MISMATCHED PAIR: The front image shows a 1 Ruble note from the 1991 Soviet series (P-237a), while the back image shows a 25 Ruble note from the 1961 series (P-234b). These are NOT the same banknote. The 1961 series was introduced following the 1961 monetary reform at a 10:1 redenomination and remained in circulation until the dissolution of the USSR in 1991. The 1991 series was the final Soviet currency issue before the collapse. Both series were demonetized following the end of the Soviet Union.", "language_script": "Cyrillic", "languages": "ru", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": null, "condition_notes": "Front image (1 Ruble) appears UNC; Back image (25 Rubles) shows circulation wear, approximately VF", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.95, "currency": 0.95, "denomination": 0.0, "series_name": 0.5, "series_year": 0.5, "issue_year": 0.5, "issuer": 0.95, "signatures": 0.0, "printer": 0.85, "material": 0.95, "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": 0.85, "back_description": 0.9, "historical_notes": 0.9, "condition_grade": 0.0}, "overall_confidence": 0.3, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.95, "currency": 0.95, "denomination": 0.0, "series_name": 0.5, "series_year": 0.5, "issue_year": 0.5, "issuer": 0.95, "signatures": 0.0, "printer": 0.85, "material": 0.95, "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": 0.85, "back_description": 0.9, "historical_notes": 0.9, "condition_grade": 0.0}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:08:26
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
    "denomination": "25 Rubles",
    "series_year": "1961",
    "series_name": "Series 1961",
    "series_range": "1961–1991",
    "issue_year": "1961",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (1947 series)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственный банк СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "157x67",
    "watermark": "Hammer and sickle pattern",
    "security_features": "microprint,intaglio,latent_image",
    "color_palette": "#8b4513,#d2b48c,#f5deb3",

    "portrait_subject": "Vladimir Lenin",
    "reverse_subject": null,
    "themes": "statesman,commemorative",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-236",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "The front features ornamental design with denomination '25' and text in multiple languages of the Soviet Union. The multilingual text reads 'Twenty-five rubles' in Russian, Latvian, Estonian, Lithuanian, and other Soviet languages, reflecting the multinational character of the USSR. The note displays intricate guilloche patterns and a multicolor rosette security element at right. This design was part of the 1961 currency reform that redenominated the ruble at a rate of 10:1.",
    "back_description": "Vladimir Ilyich Lenin (1870–1924), founder of the Soviet state and leader of the Bolshevik Revolution of 1917. His profile portrait appears at right within an ornate frame, with the Soviet coat of arms (hammer and sickle with star and wheat sheaves) at upper left. The text 'Билет Государственного Банка СССР' (Ticket of the State Bank of the USSR) and '10 рублей' appears prominently, with the date '1961' at bottom right. Lenin's image appeared on virtually all Soviet banknotes from the 1930s until the dissolution of the USSR in 1991.",
    "historical_notes": "The 1961 Soviet ruble series was introduced as part of Nikita Khrushchev's currency reform on January 1, 1961, which redenominated the currency at a rate of 10 old rubles to 1 new ruble. This series remained in circulation until the collapse of the Soviet Union in 1991. The 25-ruble denomination was one of the higher-value notes in everyday circulation. The multilingual text on the front reflects the federal structure of the USSR, with denominations printed in the languages of the Soviet republics. The serial prefix 'Бо' (Bo in Cyrillic) is typical for this series. These notes were printed by Goznak (Гознак), the Soviet state security printing works. All notes in this series featured Lenin's portrait on the reverse, emphasizing his central role in Soviet ideology. The note was demonetized following the dissolution of the USSR and replaced by Russian Federation currency.",
    "language_script": "Cyrillic, Latin",
    "languages": "ru,lv,et,lt",

    "serial_number": "Бо 1076889",
    "serial_prefix": "Бо",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note shows signs of circulation with visible wear and slight soiling, but design elements remain clear",

    "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": 0.8,
      "portrait_subject": 1.0,
      "reverse_subject": 0.0,
      "pick_number": 0.95,
      "serial_number": 0.98,
      "front_description": 0.9,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.93,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble", "denomination": "25 Rubles", "series_year": "1961", "series_name": "Series 1961", "series_range": "1961\u20131991", "issue_year": "1961", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (1947 series)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0431\u0430\u043d\u043a \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "157x67", "watermark": "Hammer and sickle pattern", "security_features": "microprint,intaglio,latent_image", "color_palette": "#8b4513,#d2b48c,#f5deb3", "portrait_subject": "Vladimir Lenin", "reverse_subject": null, "themes": "statesman,commemorative", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-236", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The front features ornamental design with denomination '25' and text in multiple languages of the Soviet Union. The multilingual text reads 'Twenty-five rubles' in Russian, Latvian, Estonian, Lithuanian, and other Soviet languages, reflecting the multinational character of the USSR. The note displays intricate guilloche patterns and a multicolor rosette security element at right. This design was part of the 1961 currency reform that redenominated the ruble at a rate of 10:1.", "back_description": "Vladimir Ilyich Lenin (1870\u20131924), founder of the Soviet state and leader of the Bolshevik Revolution of 1917. His profile portrait appears at right within an ornate frame, with the Soviet coat of arms (hammer and sickle with star and wheat sheaves) at upper left. The text '\u0411\u0438\u043b\u0435\u0442 \u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u0411\u0430\u043d\u043a\u0430 \u0421\u0421\u0421\u0420' (Ticket of the State Bank of the USSR) and '10 \u0440\u0443\u0431\u043b\u0435\u0439' appears prominently, with the date '1961' at bottom right. Lenin's image appeared on virtually all Soviet banknotes from the 1930s until the dissolution of the USSR in 1991.", "historical_notes": "The 1961 Soviet ruble series was introduced as part of Nikita Khrushchev's currency reform on January 1, 1961, which redenominated the currency at a rate of 10 old rubles to 1 new ruble. This series remained in circulation until the collapse of the Soviet Union in 1991. The 25-ruble denomination was one of the higher-value notes in everyday circulation. The multilingual text on the front reflects the federal structure of the USSR, with denominations printed in the languages of the Soviet republics. The serial prefix '\u0411\u043e' (Bo in Cyrillic) is typical for this series. These notes were printed by Goznak (\u0413\u043e\u0437\u043d\u0430\u043a), the Soviet state security printing works. All notes in this series featured Lenin's portrait on the reverse, emphasizing his central role in Soviet ideology. The note was demonetized following the dissolution of the USSR and replaced by Russian Federation currency.", "language_script": "Cyrillic, Latin", "languages": "ru,lv,et,lt", "serial_number": "\u0411\u043e 1076889", "serial_prefix": "\u0411\u043e", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows signs of circulation with visible wear and slight soiling, but design elements remain clear", "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": 0.8, "portrait_subject": 1.0, "reverse_subject": 0.0, "pick_number": 0.95, "serial_number": 0.98, "front_description": 0.9, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.85}, "overall_confidence": 0.93, "flags": []}

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": 0.8, "portrait_subject": 1.0, "reverse_subject": 0.0, "pick_number": 0.95, "serial_number": 0.98, "front_description": 0.9, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:09:03
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
    "denomination": "5",
    "series_year": "1961",
    "series_name": "Fourth series Soviet ruble",
    "series_range": "1961–1991",
    "issue_year": "1961",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (1947 series)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "ГОСУДАРСТВЕННЫЙ КАЗНАЧЕЙСКИЙ БИЛЕТ СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "114x57",
    "watermark": "Stars pattern",
    "security_features": "guilloche_patterns,microprint,intaglio",
    "color_palette": "#d4af7a,#8fa8b8,#5b3a29",

    "portrait_subject": null,
    "reverse_subject": "Spasskaya Tower of the Moscow Kremlin",
    "themes": "architecture,statesman",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "224",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "State Treasury Note of the USSR, 5 rubles denomination. The front features elaborate guilloche patterns with rosette designs and the denomination '5' in ornamental frames at left and right. The text is multilingual, displaying 'ПЯТЬ РУБЛЕЙ' (Five Rubles) in Russian with translations in the languages of the Soviet republics including Belarusian, Georgian, and others. The note includes the text 'ПОДДЕЛКА ГОСУДАРСТВЕННЫХ КАЗНАЧЕЙСКИХ БИЛЕТОВ ПРЕСЛЕДУЕТСЯ ПО ЗАКОНУ' (Counterfeiting of state treasury notes is prosecuted by law). This is a standard-issue note from the 1961 monetary reform that replaced the 1947 series at a 10:1 ratio.",
    "back_description": "Spasskaya Tower of the Moscow Kremlin, the most famous of the Kremlin towers, built in 1491 by Italian architect Pietro Antonio Solari and serving as the main entrance to the Kremlin; its clock chimes have been broadcast as time signals since Soviet times. The tower is shown with its distinctive tent-roofed spire and star. The State Emblem of the USSR (hammer and sickle surrounded by wheat sheaves) appears at upper left. Text reads 'ГОСУДАРСТВЕННЫЙ КАЗНАЧЕЙСКИЙ БИЛЕТ СССР' (State Treasury Note of the USSR) and 'ПЯТЬ РУБЛЕЙ' (Five Rubles). The year 1961 is printed at lower left.",
    "historical_notes": "This 5-ruble note belongs to the fourth series of Soviet rubles, introduced by the 1961 monetary reform that devalued the currency at a ratio of 10 old rubles to 1 new ruble. The reform was intended to simplify calculations and remove excess currency from circulation. This series remained in use throughout the remainder of Soviet history until the dissolution of the USSR in 1991. The 1961 series featured standardized designs across all denominations with the Kremlin towers as a recurring motif. These notes were issued as State Treasury Notes (казначейские билеты) rather than State Bank Notes for lower denominations. The serial number prefix 'КП' indicates a specific print series. No known serial-year encoding exists for this issuer.",
    "language_script": "Cyrillic",
    "languages": "ru,be,ka,hy,az,uz,kk,ky",

    "serial_number": "КП 6274108",
    "serial_prefix": "КП",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note shows signs of circulation with some creasing and age toning, but remains intact with all details visible.",

    "estimated_value_low": 2,
    "estimated_value_high": 10,
    "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": 0.9,
      "material": 1.0,
      "dimensions_mm": 0.9,
      "watermark": 0.8,
      "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": 0.9,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.93,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble", "denomination": "5", "series_year": "1961", "series_name": "Fourth series Soviet ruble", "series_range": "1961\u20131991", "issue_year": "1961", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (1947 series)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u042b\u0419 \u041a\u0410\u0417\u041d\u0410\u0427\u0415\u0419\u0421\u041a\u0418\u0419 \u0411\u0418\u041b\u0415\u0422 \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "114x57", "watermark": "Stars pattern", "security_features": "guilloche_patterns,microprint,intaglio", "color_palette": "#d4af7a,#8fa8b8,#5b3a29", "portrait_subject": null, "reverse_subject": "Spasskaya Tower of the Moscow Kremlin", "themes": "architecture,statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": "224", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "State Treasury Note of the USSR, 5 rubles denomination. The front features elaborate guilloche patterns with rosette designs and the denomination '5' in ornamental frames at left and right. The text is multilingual, displaying '\u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Five Rubles) in Russian with translations in the languages of the Soviet republics including Belarusian, Georgian, and others. The note includes the text '\u041f\u041e\u0414\u0414\u0415\u041b\u041a\u0410 \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u042b\u0425 \u041a\u0410\u0417\u041d\u0410\u0427\u0415\u0419\u0421\u041a\u0418\u0425 \u0411\u0418\u041b\u0415\u0422\u041e\u0412 \u041f\u0420\u0415\u0421\u041b\u0415\u0414\u0423\u0415\u0422\u0421\u042f \u041f\u041e \u0417\u0410\u041a\u041e\u041d\u0423' (Counterfeiting of state treasury notes is prosecuted by law). This is a standard-issue note from the 1961 monetary reform that replaced the 1947 series at a 10:1 ratio.", "back_description": "Spasskaya Tower of the Moscow Kremlin, the most famous of the Kremlin towers, built in 1491 by Italian architect Pietro Antonio Solari and serving as the main entrance to the Kremlin; its clock chimes have been broadcast as time signals since Soviet times. The tower is shown with its distinctive tent-roofed spire and star. The State Emblem of the USSR (hammer and sickle surrounded by wheat sheaves) appears at upper left. Text reads '\u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u042b\u0419 \u041a\u0410\u0417\u041d\u0410\u0427\u0415\u0419\u0421\u041a\u0418\u0419 \u0411\u0418\u041b\u0415\u0422 \u0421\u0421\u0421\u0420' (State Treasury Note of the USSR) and '\u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Five Rubles). The year 1961 is printed at lower left.", "historical_notes": "This 5-ruble note belongs to the fourth series of Soviet rubles, introduced by the 1961 monetary reform that devalued the currency at a ratio of 10 old rubles to 1 new ruble. The reform was intended to simplify calculations and remove excess currency from circulation. This series remained in use throughout the remainder of Soviet history until the dissolution of the USSR in 1991. The 1961 series featured standardized designs across all denominations with the Kremlin towers as a recurring motif. These notes were issued as State Treasury Notes (\u043a\u0430\u0437\u043d\u0430\u0447\u0435\u0439\u0441\u043a\u0438\u0435 \u0431\u0438\u043b\u0435\u0442\u044b) rather than State Bank Notes for lower denominations. The serial number prefix '\u041a\u041f' indicates a specific print series. No known serial-year encoding exists for this issuer.", "language_script": "Cyrillic", "languages": "ru,be,ka,hy,az,uz,kk,ky", "serial_number": "\u041a\u041f 6274108", "serial_prefix": "\u041a\u041f", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows signs of circulation with some creasing and age toning, but remains intact with all details visible.", "estimated_value_low": 2, "estimated_value_high": 10, "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": 0.9, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.8, "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": 0.9, "condition_grade": 0.85}, "overall_confidence": 0.93, "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": 0.0, "printer": 0.9, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.8, "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": 0.9, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:09:04
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
    "denomination": "5",
    "series_year": "1961",
    "series_name": "1961 Soviet Ruble Reform Series",
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    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (1947 series)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "ГОСУДАРСТВЕННЫЙ КАЗНАЧЕЙСКИЙ БИЛЕТ СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "137x61",
    "watermark": "Stars pattern",
    "security_features": "intaglio,microprint",
    "color_palette": "#d4b896,#e8d4b8,#8b7355",

    "portrait_subject": null,
    "reverse_subject": "Spasskaya Tower of the Moscow Kremlin",
    "themes": "architecture,statesman",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-224",
    "krause_id": null,
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    "rarity_tier": "common",

    "front_description": "State Treasury Note of the USSR, 5 rubles denomination. The note features multilingual text reading 'Five Rubles' in Russian and the languages of the 15 Soviet republics (Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kyrgyz, Tajik, Armenian, Turkmen, and Estonian). The text states that State Treasury Notes are accepted throughout the USSR for all payments at face value. The 1961 currency reform created this series following Khrushchev's redenomination at 10:1, replacing the 1947 series during a period of economic restructuring.",
    "back_description": "Spasskaya Tower of the Moscow Kremlin, the most famous tower of the Kremlin complex, built 1491 by Italian architect Pietro Antonio Solari; its clock was installed in 1625 and the tower serves as the main entrance to Red Square. The Soviet coat of arms (hammer and sickle with star and grain wreath) appears at upper left. The date '1961' is printed at bottom left, marking the year of the currency reform that introduced this series. This tower became an iconic symbol of Soviet state power and appears on multiple denominations of this series.",
    "historical_notes": "This note belongs to the 1961 Soviet Ruble Reform Series, introduced following Khrushchev's monetary reform of January 1, 1961, which redenominated the currency at a rate of 10 old rubles to 1 new ruble. The reform aimed to simplify calculations and restore confidence after post-war inflation. These notes circulated throughout the Soviet period until the USSR's dissolution in 1991. The series is notable for featuring multilingual text in all 15 languages of the Soviet republics, reflecting the federal structure of the USSR. The 5-ruble note was a common denomination for everyday transactions. The serial number prefix 'Тъ' indicates a specific print series. These notes were printed by Goznak (Гознак), the Soviet state printing works. Following the collapse of the Soviet Union, these notes were withdrawn and replaced by Russian Federation currency.",
    "language_script": "Cyrillic (Russian) with text in Latin and other scripts for non-Slavic languages",
    "languages": "ru,uk,be,uz,kk,ka,az,lt,mo,lv,ky,tg,hy,tk,et",

    "serial_number": "Тъ 9277411",
    "serial_prefix": "Тъ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note shows moderate circulation with visible wear, some creasing, and slight discoloration typical of used Soviet banknotes from this era",

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

    "field_confidence": {
      "country": 1.0,
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    "overall_confidence": 0.92,
    "flags": []
  }
  ```

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field_confidence:
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provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:09:05
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
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    "front_description": "State Treasury Note of the USSR, 5 Rubles. The front features the denomination '5' (ПЯТЬ РУБЛЕЙ) in the center with multilingual denomination text in the languages of the Soviet republics including Russian, Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kyrgyz, Tajik, Armenian, Turkmen, and Estonian. The text states that State Treasury Notes are secured by gold, precious metals and other assets of the state and are legal tender throughout the USSR. Serial number ЯН 1964516 visible at bottom.",
    "back_description": "Spasskaya Tower of the Moscow Kremlin, the most iconic of the Kremlin towers, built in 1491 by Italian architect Pietro Antonio Solari and topped with its distinctive ruby star. The tower houses the famous Kremlin chimes and serves as the main ceremonial entrance to Red Square. The State Coat of Arms of the USSR (hammer and sickle within wreath, topped by star) appears at upper left. The date '1961' appears on the back, marking the denomination reform that removed one zero from the currency.",
    "historical_notes": "This note belongs to the 1961 Soviet currency reform series, which replaced the 1947 series at a rate of 10:1 (10 old rubles = 1 new ruble) as part of Khrushchev's economic policies. The reform aimed to simplify accounting and combat inflation. The 1961 series was the last complete Soviet ruble series and remained in circulation until the dissolution of the USSR in 1991. These notes featured the State Coat of Arms and iconic Soviet architectural landmarks. The multilingual text on the front represents the fifteen Soviet republics. Printed by Goznak (Государственный знак - State Sign), the Soviet state security printing works. This series is well-documented and common in the numismatic market.",
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    "flags": []
  }
  ```

parsed_json:
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field_confidence:
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provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:09:29
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
    "denomination": "5",
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    "series_name": "1961 Series",
    "series_range": "1961–1991",
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    "front_description": "State Treasury Note of the USSR, 5 rubles. The front features multicolored guilloche patterns with denomination numerals in ornate frames at left and right. The center contains text in Russian and the official languages of the Soviet republics (including Ukrainian, Belarusian, Georgian, Armenian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kyrgyz, Tajik, Estonian, Turkmen, and Uzbek), stating 'Five Rubles' and 'Counterfeit state treasury notes are prosecuted by law'. This multilingual design was characteristic of Soviet currency, reflecting the USSR's federal structure and multiple constituent republics.",

    "back_description": "Spasskaya Tower of the Moscow Kremlin, the iconic clock tower with its distinctive star-topped spire, built in 1491 by Italian architect Pietro Antonio Solari and serving as the main entrance to the Kremlin from Red Square. The tower has been the symbolic gateway to Soviet power since 1917 and remains one of Russia's most recognizable landmarks. The State Emblem of the USSR (hammer and sickle within wheat sheaves) appears at upper left, with the date '1961' below. Text at top reads 'State Treasury Note of the USSR' (Государственный Казначейский Билет СССР).",

    "historical_notes": "This note belongs to the 1961 monetary reform series that replaced the 1947 series at a 10:1 redenomination ratio. The reform was part of Khrushchev's economic policy and remained in circulation for three decades until the dissolution of the USSR in 1991. The 1961 series introduced a new design language emphasizing Soviet architecture and industrial achievements rather than portraits of leaders, reflecting the post-Stalin de-Stalinization period. The multicolored guilloche work was produced by Goznak (Гознак), the Soviet state printing works. The visible serial number format 'ВЯ 0451268' uses Cyrillic prefix letters, standard for Soviet banknote production. This denomination was widely used for everyday transactions throughout the Soviet period.",

    "language_script": "Cyrillic,Latin,Armenian,Georgian",
    "languages": "ru,uk,be,kk,uz,ky,tg,az,lt,lv,et,hy,ka,ro,tk",

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    "condition_grade": "VF",
    "condition_notes": "Circulated note with some soiling and edge wear visible, particularly at margins. Paper shows handling but remains intact with no tears.",

    "estimated_value_low": 1,
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    "value_currency": "USD",

    "field_confidence": {
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    },
    "overall_confidence": 0.95,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble", "denomination": "5", "series_year": "1961", "series_name": "1961 Series", "series_range": "1961\u20131991", "issue_year": "1961", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (1947 Series)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u041a\u0430\u0437\u043d\u0430\u0447\u0435\u0439\u0441\u043a\u0438\u0439 \u0411\u0438\u043b\u0435\u0442 \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "114x57", "watermark": "Stars pattern", "security_features": "guilloche_patterns,microprint", "color_palette": "#d4c5a0,#b8a890,#6b8ba3", "portrait_subject": null, "reverse_subject": "Spasskaya Tower, Moscow Kremlin", "themes": "architecture,statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-224", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "State Treasury Note of the USSR, 5 rubles. The front features multicolored guilloche patterns with denomination numerals in ornate frames at left and right. The center contains text in Russian and the official languages of the Soviet republics (including Ukrainian, Belarusian, Georgian, Armenian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kyrgyz, Tajik, Estonian, Turkmen, and Uzbek), stating 'Five Rubles' and 'Counterfeit state treasury notes are prosecuted by law'. This multilingual design was characteristic of Soviet currency, reflecting the USSR's federal structure and multiple constituent republics.", "back_description": "Spasskaya Tower of the Moscow Kremlin, the iconic clock tower with its distinctive star-topped spire, built in 1491 by Italian architect Pietro Antonio Solari and serving as the main entrance to the Kremlin from Red Square. The tower has been the symbolic gateway to Soviet power since 1917 and remains one of Russia's most recognizable landmarks. The State Emblem of the USSR (hammer and sickle within wheat sheaves) appears at upper left, with the date '1961' below. Text at top reads 'State Treasury Note of the USSR' (\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u041a\u0430\u0437\u043d\u0430\u0447\u0435\u0439\u0441\u043a\u0438\u0439 \u0411\u0438\u043b\u0435\u0442 \u0421\u0421\u0421\u0420).", "historical_notes": "This note belongs to the 1961 monetary reform series that replaced the 1947 series at a 10:1 redenomination ratio. The reform was part of Khrushchev's economic policy and remained in circulation for three decades until the dissolution of the USSR in 1991. The 1961 series introduced a new design language emphasizing Soviet architecture and industrial achievements rather than portraits of leaders, reflecting the post-Stalin de-Stalinization period. The multicolored guilloche work was produced by Goznak (\u0413\u043e\u0437\u043d\u0430\u043a), the Soviet state printing works. The visible serial number format '\u0412\u042f 0451268' uses Cyrillic prefix letters, standard for Soviet banknote production. This denomination was widely used for everyday transactions throughout the Soviet period.", "language_script": "Cyrillic,Latin,Armenian,Georgian", "languages": "ru,uk,be,kk,uz,ky,tg,az,lt,lv,et,hy,ka,ro,tk", "serial_number": "\u0412\u042f 0451268", "serial_prefix": "\u0412\u042f", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Circulated note with some soiling and edge wear visible, particularly at margins. Paper shows handling but remains intact with no tears.", "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 1.0, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.95, "material": 1.0, "dimensions_mm": 0.95, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 1.0, "serial_number": 1.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.85}, "overall_confidence": 0.95, "flags": []}

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


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:09:30
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
    "denomination": "10 Rubles",
    "series_year": "1961",
    "series_name": "Series 1961",
    "series_range": "1961–1991",
    "issue_year": "1961",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (1947 series)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственный Банк СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "150x65",
    "watermark": "Hammer and sickle emblem in clear field",
    "security_features": "watermark,guilloche_patterns,microprint",
    "color_palette": "#d4a574,#f5e6d3,#8b4513",

    "portrait_subject": null,
    "reverse_subject": "Spasskaya Tower of the Moscow Kremlin",
    "themes": "architecture,statesman",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "233a",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "State Bank of the USSR 10-ruble note from the 1961 currency reform series. The front displays the denomination '10 РУБЛЕЙ' (10 Rubles) with ornate guilloche rosettes and the inscription 'СССР' (USSR). Text in multiple languages of the Soviet Union appears at lower right, translating 'ten rubles' into the fifteen republics' languages (Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kirghiz, Tajik, Armenian, Turkmen, Estonian). The 1961 reform redenominated the ruble at 10:1, replacing Stalin-era notes with this series that circulated until the USSR's dissolution.",
    "back_description": "Spasskaya Tower (Saviour's Tower) of the Moscow Kremlin, the most recognizable tower of the Kremlin complex, built in 1491 by Italian architect Pietro Antonio Solari. The tower houses the main gate to Red Square and is crowned with the iconic red star. The State Emblem of the USSR (hammer and sickle within wreath, surmounted by star) appears at upper left. Text reads 'ГОСУДАРСТВЕННЫЙ КАЗНАЧЕЙСКИЙ БИЛЕТ СССР' (State Treasury Note of the USSR) and 'ПЯТЬ РУБЛЕЙ' (Five Rubles) - note the discrepancy: the back shows '5 rubles' while the front shows '10 rubles', indicating this is a mismatched pair of images.",
    "historical_notes": "This is the 1961 series of Soviet state treasury notes, introduced during Khrushchev's monetary reform which redenominated the ruble 10:1 (replacing 10 old rubles with 1 new ruble). The series was designed to remove Stalin-era currency and featured multilingual inscriptions reflecting the federal nature of the USSR's fifteen constituent republics. The 1961 series circulated until the dissolution of the Soviet Union in 1991, when it was replaced by Russian Federation currency. Pick 233a specifically refers to the 10-ruble denomination with the serial prefix format seen here. The serial number 'Эа 3599192' uses Cyrillic prefix 'Эа'. Goznak (Гознак), the Soviet state printing works, produced all USSR banknotes. IMPORTANT: The provided images show a MISMATCHED PAIR - the front is a 10-ruble note while the back is from a 5-ruble note (evident from both the denomination numeral '5' and the text 'ПЯТЬ РУБЛЕЙ'). The cataloguing above reflects the FRONT (10-ruble) note's characteristics.",
    "language_script": "Cyrillic, Latin, Georgian, Armenian",
    "languages": "ru,uk,be,uz,kk,ka,az,lt,ro,lv,ky,tg,hy,tk,et",

    "serial_number": "Эа 3599192",
    "serial_prefix": "Эа",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Circulated note with visible handling, some discoloration and soiling, edges show wear, no major tears 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": 1.0,
      "series_year": 1.0,
      "issue_year": 1.0,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.95,
      "material": 0.95,
      "dimensions_mm": 0.9,
      "watermark": 0.85,
      "portrait_subject": 1.0,
      "reverse_subject": 0.3,
      "pick_number": 0.9,
      "serial_number": 0.95,
      "front_description": 0.95,
      "back_description": 0.85,
      "historical_notes": 0.95,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.65,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble", "denomination": "10 Rubles", "series_year": "1961", "series_name": "Series 1961", "series_range": "1961\u20131991", "issue_year": "1961", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (1947 series)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0411\u0430\u043d\u043a \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "150x65", "watermark": "Hammer and sickle emblem in clear field", "security_features": "watermark,guilloche_patterns,microprint", "color_palette": "#d4a574,#f5e6d3,#8b4513", "portrait_subject": null, "reverse_subject": "Spasskaya Tower of the Moscow Kremlin", "themes": "architecture,statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": "233a", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "State Bank of the USSR 10-ruble note from the 1961 currency reform series. The front displays the denomination '10 \u0420\u0423\u0411\u041b\u0415\u0419' (10 Rubles) with ornate guilloche rosettes and the inscription '\u0421\u0421\u0421\u0420' (USSR). Text in multiple languages of the Soviet Union appears at lower right, translating 'ten rubles' into the fifteen republics' languages (Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kirghiz, Tajik, Armenian, Turkmen, Estonian). The 1961 reform redenominated the ruble at 10:1, replacing Stalin-era notes with this series that circulated until the USSR's dissolution.", "back_description": "Spasskaya Tower (Saviour's Tower) of the Moscow Kremlin, the most recognizable tower of the Kremlin complex, built in 1491 by Italian architect Pietro Antonio Solari. The tower houses the main gate to Red Square and is crowned with the iconic red star. The State Emblem of the USSR (hammer and sickle within wreath, surmounted by star) appears at upper left. Text reads '\u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u042b\u0419 \u041a\u0410\u0417\u041d\u0410\u0427\u0415\u0419\u0421\u041a\u0418\u0419 \u0411\u0418\u041b\u0415\u0422 \u0421\u0421\u0421\u0420' (State Treasury Note of the USSR) and '\u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Five Rubles) - note the discrepancy: the back shows '5 rubles' while the front shows '10 rubles', indicating this is a mismatched pair of images.", "historical_notes": "This is the 1961 series of Soviet state treasury notes, introduced during Khrushchev's monetary reform which redenominated the ruble 10:1 (replacing 10 old rubles with 1 new ruble). The series was designed to remove Stalin-era currency and featured multilingual inscriptions reflecting the federal nature of the USSR's fifteen constituent republics. The 1961 series circulated until the dissolution of the Soviet Union in 1991, when it was replaced by Russian Federation currency. Pick 233a specifically refers to the 10-ruble denomination with the serial prefix format seen here. The serial number '\u042d\u0430 3599192' uses Cyrillic prefix '\u042d\u0430'. Goznak (\u0413\u043e\u0437\u043d\u0430\u043a), the Soviet state printing works, produced all USSR banknotes. IMPORTANT: The provided images show a MISMATCHED PAIR - the front is a 10-ruble note while the back is from a 5-ruble note (evident from both the denomination numeral '5' and the text '\u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419'). The cataloguing above reflects the FRONT (10-ruble) note's characteristics.", "language_script": "Cyrillic, Latin, Georgian, Armenian", "languages": "ru,uk,be,uz,kk,ka,az,lt,ro,lv,ky,tg,hy,tk,et", "serial_number": "\u042d\u0430 3599192", "serial_prefix": "\u042d\u0430", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Circulated note with visible handling, some discoloration and soiling, edges show wear, no major tears 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": 1.0, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.95, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 0.3, "pick_number": 0.9, "serial_number": 0.95, "front_description": 0.95, "back_description": 0.85, "historical_notes": 0.95, "condition_grade": 0.8}, "overall_confidence": 0.65, "flags": ["mismatched_pair"]}

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


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:09:30
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 Soviet 10 Ruble note (ДЕСЯТЬ РУБЛЕЙ) issued by the State Bank of the USSR (Государственный Банк СССР). The note features the denomination '10' in multiple locations with intricate guilloche patterns in pink, blue, and yellow tones. The text includes the anti-counterfeiting warning in Russian and the denomination written in all 15 Soviet republic languages at lower right. Serial number Эа 3599192 appears twice.",
    "back_description": "The back image shows a Soviet 5 Ruble State Treasury Note (Государственный Казначейский Билет СССР) dated 1961, featuring the Spasskaya Tower of the Moscow Kremlin at left with the Soviet state emblem (hammer, sickle, and wheat ears) at upper left. The denomination 'Пять рублей' (Five Rubles) appears centrally with ornate guilloche patterns. This is clearly a DIFFERENT denomination from the front image.",
    "historical_notes": "CRITICAL: These images show TWO DIFFERENT Soviet banknotes that have been incorrectly paired. The FRONT is a 10 Ruble note from the 1991 final Soviet series (P-240a), while the BACK shows a 5 Ruble State Treasury Note from the 1961 series (P-224a). The 1991 10 Ruble was among the last notes issued before the USSR dissolved in December 1991. The 1961 5 Ruble was part of the major 1961 currency reform that revalued the ruble 10:1 and introduced designs that remained in use for three decades.",
    "language_script": "Cyrillic",
    "languages": "ru,uk,be,uz,kk,az,lt,lv,et,ky,tg,hy,ka,tk,mo",

    "serial_number": "Эа 3599192",
    "serial_prefix": "Эа",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "F",
    "condition_notes": "Both notes show significant circulation wear with folds, creases, and some soiling. The front (10 Ruble) shows moderate wear. The back (5 Ruble) shows heavier circulation with more pronounced creasing.",

    "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": 0.95,
      "front_description": 0.85,
      "back_description": 0.85,
      "historical_notes": 0.90,
      "condition_grade": 0.75
    },
    "overall_confidence": 0.15,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": null, "currency": null, "denomination": null, "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": null, "legal_status": null, "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": null, "issuer_native": null, "signatures": null, "printer": null, "engraver": null, "material": null, "dimensions_mm": null, "watermark": null, "security_features": null, "color_palette": null, "portrait_subject": null, "reverse_subject": null, "themes": null, "commemorative": null, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "The front image shows a Soviet 10 Ruble note (\u0414\u0415\u0421\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419) issued by the State Bank of the USSR (\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0411\u0430\u043d\u043a \u0421\u0421\u0421\u0420). The note features the denomination '10' in multiple locations with intricate guilloche patterns in pink, blue, and yellow tones. The text includes the anti-counterfeiting warning in Russian and the denomination written in all 15 Soviet republic languages at lower right. Serial number \u042d\u0430 3599192 appears twice.", "back_description": "The back image shows a Soviet 5 Ruble State Treasury Note (\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u041a\u0430\u0437\u043d\u0430\u0447\u0435\u0439\u0441\u043a\u0438\u0439 \u0411\u0438\u043b\u0435\u0442 \u0421\u0421\u0421\u0420) dated 1961, featuring the Spasskaya Tower of the Moscow Kremlin at left with the Soviet state emblem (hammer, sickle, and wheat ears) at upper left. The denomination '\u041f\u044f\u0442\u044c \u0440\u0443\u0431\u043b\u0435\u0439' (Five Rubles) appears centrally with ornate guilloche patterns. This is clearly a DIFFERENT denomination from the front image.", "historical_notes": "CRITICAL: These images show TWO DIFFERENT Soviet banknotes that have been incorrectly paired. The FRONT is a 10 Ruble note from the 1991 final Soviet series (P-240a), while the BACK shows a 5 Ruble State Treasury Note from the 1961 series (P-224a). The 1991 10 Ruble was among the last notes issued before the USSR dissolved in December 1991. The 1961 5 Ruble was part of the major 1961 currency reform that revalued the ruble 10:1 and introduced designs that remained in use for three decades.", "language_script": "Cyrillic", "languages": "ru,uk,be,uz,kk,az,lt,lv,et,ky,tg,hy,ka,tk,mo", "serial_number": "\u042d\u0430 3599192", "serial_prefix": "\u042d\u0430", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Both notes show significant circulation wear with folds, creases, and some soiling. The front (10 Ruble) shows moderate wear. The back (5 Ruble) shows heavier circulation with more pronounced creasing.", "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": 0.95, "front_description": 0.85, "back_description": 0.85, "historical_notes": 0.9, "condition_grade": 0.75}, "overall_confidence": 0.15, "flags": ["mismatched_pair"]}

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


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:10:06
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
    "denomination": "5",
    "series_year": "1961",
    "series_name": "1961 Reform series",
    "series_range": "1961–1991",
    "issue_year": "1961",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (1947 series)",
    "successor_currency": "Russian Ruble",
    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственный Казначейский Билет СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,
    "material": "paper",
    "dimensions_mm": "114x57",
    "watermark": "Stars pattern",
    "security_features": "intaglio,microprint",
    "color_palette": "#f5deb3,#dda0dd,#87ceeb",
    "portrait_subject": null,
    "reverse_subject": "Spasskaya Tower of the Moscow Kremlin",
    "themes": "architecture,statesman",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": "P-224",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",
    "front_description": "State Treasury Note of the USSR, 5 Rubles. The front displays the denomination in large Cyrillic text 'ПЯТЬ РУБЛЕЙ' (Five Rubles) at center, surrounded by ornate guilloche patterns. The denomination is repeated in the languages of all Soviet republics including Russian, Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldovan, Latvian, Kyrgyz, Tajik, Armenian, Turkmen, and Estonian. This multilingual approach reflected the federal structure of the USSR and the 1961 currency reform which replaced old rubles at a 10:1 ratio to combat inflation and consolidate the post-Stalin economy.",
    "back_description": "Spasskaya Tower of the Moscow Kremlin, the main clock tower built in 1491 by Italian architect Pietro Antonio Solari and rebuilt in its current form in 1625. The tower serves as the ceremonial entrance to the Kremlin and is crowned by the iconic ruby red star installed in Soviet times. The back features the State Emblem of the USSR (hammer and sickle surrounded by wheat sheaves) at upper left, with text 'ГОСУДАРСТВЕННЫЙ КАЗНАЧЕЙСКИЙ БИЛЕТ СССР' (State Treasury Note of the USSR) and the date '1961' below the emblem. The Kremlin tower symbolized the political center of Soviet power and appeared on multiple denominations of this series.",
    "historical_notes": "This note belongs to the 1961 Soviet currency reform series, issued by the State Bank of the USSR (Gosbank) following Khrushchev's monetary reform of January 1, 1961. The reform replaced the 1947 series at a ratio of 10:1, effectively redenominating the currency. The 1961 series remained in circulation for three decades until the dissolution of the Soviet Union in 1991, when it was replaced by the currencies of the successor states. The serial number ЯН 7628417 uses Cyrillic prefix letters typical of Soviet banknote numbering. The multilingual inscriptions on the front represent all 15 Soviet republics. The Pick number P-224 is well-documented in standard catalogues. These notes are common in circulated condition as they were produced in vast quantities over 30 years.",
    "language_script": "Cyrillic, Latin, Georgian, Armenian",
    "languages": "ru,uk,be,uz,kk,ka,az,lt,ro,lv,ky,tg,hy,tk,et",
    "serial_number": "ЯН 7628417",
    "serial_prefix": "ЯН",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,
    "condition_grade": "VF",
    "condition_notes": "Circulated note with visible wear, paper discoloration, and slight edge damage. Intact with no major tears or missing pieces.",
    "estimated_value_low": 1,
    "estimated_value_high": 3,
    "value_currency": "USD",
    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 1.0,
      "series_year": 1.0,
      "issue_year": 1.0,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.95,
      "material": 0.95,
      "dimensions_mm": 0.9,
      "watermark": 0.8,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "pick_number": 0.98,
      "serial_number": 0.95,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.95,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble", "denomination": "5", "series_year": "1961", "series_name": "1961 Reform series", "series_range": "1961\u20131991", "issue_year": "1961", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (1947 series)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u041a\u0430\u0437\u043d\u0430\u0447\u0435\u0439\u0441\u043a\u0438\u0439 \u0411\u0438\u043b\u0435\u0442 \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "114x57", "watermark": "Stars pattern", "security_features": "intaglio,microprint", "color_palette": "#f5deb3,#dda0dd,#87ceeb", "portrait_subject": null, "reverse_subject": "Spasskaya Tower of the Moscow Kremlin", "themes": "architecture,statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-224", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "State Treasury Note of the USSR, 5 Rubles. The front displays the denomination in large Cyrillic text '\u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Five Rubles) at center, surrounded by ornate guilloche patterns. The denomination is repeated in the languages of all Soviet republics including Russian, Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldovan, Latvian, Kyrgyz, Tajik, Armenian, Turkmen, and Estonian. This multilingual approach reflected the federal structure of the USSR and the 1961 currency reform which replaced old rubles at a 10:1 ratio to combat inflation and consolidate the post-Stalin economy.", "back_description": "Spasskaya Tower of the Moscow Kremlin, the main clock tower built in 1491 by Italian architect Pietro Antonio Solari and rebuilt in its current form in 1625. The tower serves as the ceremonial entrance to the Kremlin and is crowned by the iconic ruby red star installed in Soviet times. The back features the State Emblem of the USSR (hammer and sickle surrounded by wheat sheaves) at upper left, with text '\u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u042b\u0419 \u041a\u0410\u0417\u041d\u0410\u0427\u0415\u0419\u0421\u041a\u0418\u0419 \u0411\u0418\u041b\u0415\u0422 \u0421\u0421\u0421\u0420' (State Treasury Note of the USSR) and the date '1961' below the emblem. The Kremlin tower symbolized the political center of Soviet power and appeared on multiple denominations of this series.", "historical_notes": "This note belongs to the 1961 Soviet currency reform series, issued by the State Bank of the USSR (Gosbank) following Khrushchev's monetary reform of January 1, 1961. The reform replaced the 1947 series at a ratio of 10:1, effectively redenominating the currency. The 1961 series remained in circulation for three decades until the dissolution of the Soviet Union in 1991, when it was replaced by the currencies of the successor states. The serial number \u042f\u041d 7628417 uses Cyrillic prefix letters typical of Soviet banknote numbering. The multilingual inscriptions on the front represent all 15 Soviet republics. The Pick number P-224 is well-documented in standard catalogues. These notes are common in circulated condition as they were produced in vast quantities over 30 years.", "language_script": "Cyrillic, Latin, Georgian, Armenian", "languages": "ru,uk,be,uz,kk,ka,az,lt,ro,lv,ky,tg,hy,tk,et", "serial_number": "\u042f\u041d 7628417", "serial_prefix": "\u042f\u041d", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Circulated note with visible wear, paper discoloration, and slight edge damage. Intact with no major tears or missing pieces.", "estimated_value_low": 1, "estimated_value_high": 3, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 1.0, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.95, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.8, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.98, "serial_number": 0.95, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.85}, "overall_confidence": 0.95, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 1.0, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.95, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.8, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.98, "serial_number": 0.95, "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 07:10:07
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble (SUR)",
    "denomination": "5",
    "series_year": "1961",
    "series_name": "Issue of 1961",
    "series_range": "1961–1991",
    "issue_year": "1961",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991-12-26",
    "predecessor_currency": "Soviet Ruble (Issue of 1947)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственный Казначейский Билет СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "114x58",
    "watermark": "Repeating pattern with stars",
    "security_features": "microprint,intaglio",
    "color_palette": "#f5deb3,#e6b8af,#4a5568",

    "portrait_subject": null,
    "reverse_subject": "Spasskaya Tower of the Moscow Kremlin",
    "themes": "architecture,statesman",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-224",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Soviet State Treasury Note (Государственный Казначейский Билет) of 5 rubles. The note displays the denomination in a central ornamental rosette with the text \"ПЯТЬ РУБЛЕЙ\" (Five Rubles) and multilingual denominations in the languages of the Soviet republics (Russian, Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kirghiz, Tajik, Armenian, Turkmen, Estonian). The text includes a legal tender declaration stating these state treasury notes are accepted throughout the USSR and are equal to coins in payment. The 1961 currency reform redenominated the ruble at 10:1, removing a zero from all denominations.",

    "back_description": "Spasskaya Tower of the Moscow Kremlin, the iconic clock tower facing Red Square, built in 1491 by Italian architect Pietro Antonio Solari and topped with its distinctive star in the Soviet era. The tower serves as the ceremonial entrance to the Kremlin and houses the famous Kremlin chimes. The State Coat of Arms of the USSR appears at upper left, featuring the hammer and sickle, globe, rising sun, and wheat sheaves bound with ribbons inscribed with the Soviet republics' languages. Date \"1961\" appears at lower left, indicating the year of the currency reform and series introduction.",

    "historical_notes": "The 1961 Soviet ruble series was introduced as part of Nikita Khrushchev's currency reform, which redenominated the currency at a ratio of 10:1 (10 old rubles = 1 new ruble). This reform aimed to simplify monetary calculations and was accompanied by a complete redesign of all denominations. The 5-ruble note remained in circulation until the dissolution of the USSR on December 26, 1991, when the State Bank of the USSR ceased operations and was succeeded by the Central Bank of Russia. This series is notable for its multilingual inscriptions reflecting the fifteen Soviet Socialist Republics. The serial number prefix \"нЭ\" (Cyrillic) was used in various print runs throughout the series' 30-year lifespan. Printed by Goznak (Гознак), the Soviet state security printing works.",

    "language_script": "Cyrillic, Latin, Georgian, Armenian",
    "languages": "ru,uk,be,uz,kk,ka,az,lt,ro,lv,ky,tg,hy,tk,et",

    "serial_number": "нЭ 8006381",
    "serial_prefix": "нЭ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note shows circulation wear with soiling, fold marks visible, and some edge wear. Colors remain reasonably bright. No tears or major damage evident.",

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

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

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble (SUR)", "denomination": "5", "series_year": "1961", "series_name": "Issue of 1961", "series_range": "1961\u20131991", "issue_year": "1961", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991-12-26", "predecessor_currency": "Soviet Ruble (Issue of 1947)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u041a\u0430\u0437\u043d\u0430\u0447\u0435\u0439\u0441\u043a\u0438\u0439 \u0411\u0438\u043b\u0435\u0442 \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "114x58", "watermark": "Repeating pattern with stars", "security_features": "microprint,intaglio", "color_palette": "#f5deb3,#e6b8af,#4a5568", "portrait_subject": null, "reverse_subject": "Spasskaya Tower of the Moscow Kremlin", "themes": "architecture,statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-224", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Soviet State Treasury Note (\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u041a\u0430\u0437\u043d\u0430\u0447\u0435\u0439\u0441\u043a\u0438\u0439 \u0411\u0438\u043b\u0435\u0442) of 5 rubles. The note displays the denomination in a central ornamental rosette with the text \"\u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419\" (Five Rubles) and multilingual denominations in the languages of the Soviet republics (Russian, Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kirghiz, Tajik, Armenian, Turkmen, Estonian). The text includes a legal tender declaration stating these state treasury notes are accepted throughout the USSR and are equal to coins in payment. The 1961 currency reform redenominated the ruble at 10:1, removing a zero from all denominations.", "back_description": "Spasskaya Tower of the Moscow Kremlin, the iconic clock tower facing Red Square, built in 1491 by Italian architect Pietro Antonio Solari and topped with its distinctive star in the Soviet era. The tower serves as the ceremonial entrance to the Kremlin and houses the famous Kremlin chimes. The State Coat of Arms of the USSR appears at upper left, featuring the hammer and sickle, globe, rising sun, and wheat sheaves bound with ribbons inscribed with the Soviet republics' languages. Date \"1961\" appears at lower left, indicating the year of the currency reform and series introduction.", "historical_notes": "The 1961 Soviet ruble series was introduced as part of Nikita Khrushchev's currency reform, which redenominated the currency at a ratio of 10:1 (10 old rubles = 1 new ruble). This reform aimed to simplify monetary calculations and was accompanied by a complete redesign of all denominations. The 5-ruble note remained in circulation until the dissolution of the USSR on December 26, 1991, when the State Bank of the USSR ceased operations and was succeeded by the Central Bank of Russia. This series is notable for its multilingual inscriptions reflecting the fifteen Soviet Socialist Republics. The serial number prefix \"\u043d\u042d\" (Cyrillic) was used in various print runs throughout the series' 30-year lifespan. Printed by Goznak (\u0413\u043e\u0437\u043d\u0430\u043a), the Soviet state security printing works.", "language_script": "Cyrillic, Latin, Georgian, Armenian", "languages": "ru,uk,be,uz,kk,ka,az,lt,ro,lv,ky,tg,hy,tk,et", "serial_number": "\u043d\u042d 8006381", "serial_prefix": "\u043d\u042d", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows circulation wear with soiling, fold marks visible, and some edge wear. Colors remain reasonably bright. No tears or major damage evident.", "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 1.0, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.95, "material": 1.0, "dimensions_mm": 0.95, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 1.0, "serial_number": 0.98, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.85}, "overall_confidence": 0.95, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 1.0, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.95, "material": 1.0, "dimensions_mm": 0.95, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 1.0, "serial_number": 0.98, "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 07:10:23
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble (SUR)",
    "denomination": "5 Rubles (front) / 10 Rubles (back)",
    "series_year": "1961",
    "series_name": "1961 Reform Series",
    "series_range": "1961–1991",
    "issue_year": "1961",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (1947 series)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственный Банк СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": "intaglio,microprint",
    "color_palette": "#d4a574,#c89b7c,#8b6b5c",

    "portrait_subject": "Vladimir Lenin",
    "reverse_subject": "Vladimir Lenin",
    "themes": "statesman,communist_ideology",
    "commemorative": false,
    "commemorative_occasion": null,

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

    "front_description": "Five Rubles note from the 1961 Soviet monetary reform series. The front features the denomination in large Cyrillic text ('ПЯТЬ РУБЛЕЙ') with multilingual denomination text in seven languages of the Soviet republics (Russian, Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, and others), reflecting the USSR's multinational character. The 1961 reform redenominated the ruble at 10:1, with these notes designed to reflect Soviet ideological unity and economic modernization under Khrushchev.",
    "back_description": "Vladimir Lenin (1870–1924), founder of the Soviet Union and leader of the Bolshevik Revolution of 1917. Lenin's portrait appears on the back of this 10 Rubles note, printed in brown-red tones. He served as head of the Soviet government from 1917 until his death in 1924, and his image became the standard motif on Soviet currency throughout the USSR's existence. The State Emblem of the USSR appears at upper left.",
    "historical_notes": "This appears to be a mismatched pair: the front is from a 5 Rubles note while the back is from a 10 Rubles note, both from the 1961 Soviet Reform Series. The 1961 monetary reform was implemented on January 1, 1961, exchanging old rubles for new ones at a rate of 10:1. This series remained in circulation until the dissolution of the Soviet Union in 1991. The multilingual denomination text on the front reflects the Soviet policy of recognizing the languages of the constituent republics. The serial number visible on the front (ыП 4792463) uses Cyrillic prefix letters, a standard feature of Soviet banknotes. Both notes were printed by Goznak, the Soviet state printing works. These notes became demonetized following the collapse of the USSR and the introduction of Russian Federation currency. The 1961 series is common and widely collected as representative examples of late Soviet-era currency design.",
    "language_script": "Cyrillic,Latin",
    "languages": "ru,uk,be,uz,kk,ka,az",

    "serial_number": "ыП 4792463",
    "serial_prefix": "ыП",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Circulated note with visible wear, some soiling, center fold, but no major tears or damage",

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

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

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble (SUR)", "denomination": "5 Rubles (front) / 10 Rubles (back)", "series_year": "1961", "series_name": "1961 Reform Series", "series_range": "1961\u20131991", "issue_year": "1961", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (1947 series)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0411\u0430\u043d\u043a \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": "intaglio,microprint", "color_palette": "#d4a574,#c89b7c,#8b6b5c", "portrait_subject": "Vladimir Lenin", "reverse_subject": "Vladimir Lenin", "themes": "statesman,communist_ideology", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "Five Rubles note from the 1961 Soviet monetary reform series. The front features the denomination in large Cyrillic text ('\u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419') with multilingual denomination text in seven languages of the Soviet republics (Russian, Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, and others), reflecting the USSR's multinational character. The 1961 reform redenominated the ruble at 10:1, with these notes designed to reflect Soviet ideological unity and economic modernization under Khrushchev.", "back_description": "Vladimir Lenin (1870\u20131924), founder of the Soviet Union and leader of the Bolshevik Revolution of 1917. Lenin's portrait appears on the back of this 10 Rubles note, printed in brown-red tones. He served as head of the Soviet government from 1917 until his death in 1924, and his image became the standard motif on Soviet currency throughout the USSR's existence. The State Emblem of the USSR appears at upper left.", "historical_notes": "This appears to be a mismatched pair: the front is from a 5 Rubles note while the back is from a 10 Rubles note, both from the 1961 Soviet Reform Series. The 1961 monetary reform was implemented on January 1, 1961, exchanging old rubles for new ones at a rate of 10:1. This series remained in circulation until the dissolution of the Soviet Union in 1991. The multilingual denomination text on the front reflects the Soviet policy of recognizing the languages of the constituent republics. The serial number visible on the front (\u044b\u041f 4792463) uses Cyrillic prefix letters, a standard feature of Soviet banknotes. Both notes were printed by Goznak, the Soviet state printing works. These notes became demonetized following the collapse of the USSR and the introduction of Russian Federation currency. The 1961 series is common and widely collected as representative examples of late Soviet-era currency design.", "language_script": "Cyrillic,Latin", "languages": "ru,uk,be,uz,kk,ka,az", "serial_number": "\u044b\u041f 4792463", "serial_prefix": "\u044b\u041f", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Circulated note with visible wear, some soiling, center fold, but no major tears or damage", "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.0, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.5, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.0, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.85}, "overall_confidence": 0.7, "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": 0.0, "watermark": 0.5, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.0, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.95, "historical_notes": 0.9, "condition_grade": 0.85}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:10:23
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": null,
    "denomination": null,
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

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

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

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

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

    "front_description": "Soviet State Treasury Note for 5 Rubles featuring ornate guilloche patterns and the denomination 'ПЯТЬ РУБЛЕЙ' (Five Rubles) in the central decorative cartouche. The note displays the denomination in multiple languages of the Soviet republics, reflecting the multinational character of the USSR. The anti-counterfeiting warning in Russian states that forgery of state treasury notes is prosecuted by law.",
    "back_description": "State Bank of the USSR (Государственный Банк СССР) 10 Ruble note featuring a portrait of Vladimir Ilyich Lenin (1870–1924), founder of the Soviet state and leader of the October Revolution. Lenin served as the first head of Soviet Russia and remains the most depicted figure on Soviet currency. The Soviet state emblem with hammer and sickle appears at upper left. The year 1961 is printed at lower right.",
    "historical_notes": "CRITICAL: These images show TWO DIFFERENT BANKNOTES that have been incorrectly paired. The front image is a 5 Ruble Soviet State Treasury Note (Казначейский билет), while the back image is from a 10 Ruble State Bank Note (Билет Государственного Банка СССР). Both are from the 1961 Soviet currency reform series, which was introduced on January 1, 1961, revaluing the ruble at 10:1 against the previous currency. This series remained in circulation until the dissolution of the USSR in 1991. The 1961 reform created two parallel note types: Treasury Notes (1, 3, 5 rubles) without Lenin portrait, and Bank Notes (10, 25, 50, 100 rubles) featuring Lenin. Unable to provide accurate catalogue entry due to mismatched images.",
    "language_script": "Cyrillic",
    "languages": "ru,uk,be,uz,ka,az,lt,lv,ky,tg,am,tk,et",

    "serial_number": "ьП 4792463",
    "serial_prefix": "ьП",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Moderate circulation wear, some soiling and minor edge wear visible on both notes. Fold lines present.",

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

    "field_confidence": {
      "country": 0.95,
      "currency": 0.95,
      "denomination": 0.3,
      "series_name": 0.9,
      "series_year": 0.95,
      "issue_year": 0.85,
      "issuer": 0.9,
      "signatures": 0.0,
      "printer": 0.8,
      "material": 0.95,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.98,
      "reverse_subject": 0.0,
      "pick_number": 0.0,
      "serial_number": 0.9,
      "front_description": 0.85,
      "back_description": 0.9,
      "historical_notes": 0.95,
      "condition_grade": 0.7
    },
    "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": 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": "Soviet State Treasury Note for 5 Rubles featuring ornate guilloche patterns and the denomination '\u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Five Rubles) in the central decorative cartouche. The note displays the denomination in multiple languages of the Soviet republics, reflecting the multinational character of the USSR. The anti-counterfeiting warning in Russian states that forgery of state treasury notes is prosecuted by law.", "back_description": "State Bank of the USSR (\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0411\u0430\u043d\u043a \u0421\u0421\u0421\u0420) 10 Ruble note featuring a portrait of Vladimir Ilyich Lenin (1870\u20131924), founder of the Soviet state and leader of the October Revolution. Lenin served as the first head of Soviet Russia and remains the most depicted figure on Soviet currency. The Soviet state emblem with hammer and sickle appears at upper left. The year 1961 is printed at lower right.", "historical_notes": "CRITICAL: These images show TWO DIFFERENT BANKNOTES that have been incorrectly paired. The front image is a 5 Ruble Soviet State Treasury Note (\u041a\u0430\u0437\u043d\u0430\u0447\u0435\u0439\u0441\u043a\u0438\u0439 \u0431\u0438\u043b\u0435\u0442), while the back image is from a 10 Ruble State Bank Note (\u0411\u0438\u043b\u0435\u0442 \u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u0411\u0430\u043d\u043a\u0430 \u0421\u0421\u0421\u0420). Both are from the 1961 Soviet currency reform series, which was introduced on January 1, 1961, revaluing the ruble at 10:1 against the previous currency. This series remained in circulation until the dissolution of the USSR in 1991. The 1961 reform created two parallel note types: Treasury Notes (1, 3, 5 rubles) without Lenin portrait, and Bank Notes (10, 25, 50, 100 rubles) featuring Lenin. Unable to provide accurate catalogue entry due to mismatched images.", "language_script": "Cyrillic", "languages": "ru,uk,be,uz,ka,az,lt,lv,ky,tg,am,tk,et", "serial_number": "\u044c\u041f 4792463", "serial_prefix": "\u044c\u041f", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Moderate circulation wear, some soiling and minor edge wear visible on both notes. Fold lines present.", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.95, "currency": 0.95, "denomination": 0.3, "series_name": 0.9, "series_year": 0.95, "issue_year": 0.85, "issuer": 0.9, "signatures": 0.0, "printer": 0.8, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.98, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.9, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.7}, "overall_confidence": 0.25, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.95, "currency": 0.95, "denomination": 0.3, "series_name": 0.9, "series_year": 0.95, "issue_year": 0.85, "issuer": 0.9, "signatures": 0.0, "printer": 0.8, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.98, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.9, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.7}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:10:29
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
    "denomination": "10 Rubles",
    "series_year": "1961",
    "series_name": "Fourth series",
    "series_range": "1961–1991",
    "issue_year": "1961",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (Third series)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственный Банк СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "150x75",
    "watermark": "Hammer and sickle with stars",
    "security_features": "microprint,intaglio,raised_print",
    "color_palette": "#d4917b,#e6d5a8,#8b4513",

    "portrait_subject": null,
    "reverse_subject": "Spasskaya Tower of Moscow Kremlin",
    "themes": "architecture,statesman",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "233a",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "State emblem of the USSR (hammer and sickle within wreath) at center. The denomination '10 РУБЛЕЙ' (10 Rubles) appears in multilingual text representing all fifteen Soviet republics, including Russian, Latvian, Lithuanian, Estonian, Georgian, Armenian, Azerbaijani, Uzbek, Tajik, Turkmen, Kyrgyz, Kazakh, Moldovan, Ukrainian, and Belarusian. This multilingual design was introduced in the 1961 currency reform to emphasize the unity of the Soviet republics. The text 'ПОДДЕЛКА БИЛЕТОВ ГОСУДАРСТВЕННОГО БАНКА СССР ПРЕСЛЕДУЕТСЯ ПО ЗАКОНУ' (Forgery of State Bank of the USSR notes is prosecuted by law) serves as an anti-counterfeiting warning.",
    "back_description": "Spasskaya Tower (Savior Tower) of the Moscow Kremlin, the most famous of the Kremlin towers, built in 1491 by Italian architect Pietro Antonio Solari. The tower houses the Kremlin Clock and serves as the main entrance to Red Square. The State coat of arms of the USSR appears at top left. The year '1961' is printed on the lower left, marking the major currency reform that redenominated the ruble at a rate of 10:1. The text 'ГОСУДАРСТВЕННЫЙ КАЗНАЧЕЙСКИЙ БИЛЕТ СССР' (State Treasury Note of the USSR) appears across the top, and 'Пять рублей' (Five rubles) appears prominently at center, with the denomination repeated at right.",
    "historical_notes": "This note belongs to the Fourth series of Soviet banknotes, issued following the 1961 monetary reform under Nikita Khrushchev. The reform redenominated the ruble at 10:1 (10 old rubles = 1 new ruble) and aimed to simplify accounting and combat inflation. The 1961 series was the first to feature all fifteen Soviet republic languages, reflecting the official policy of national unity. These notes remained in circulation until the dissolution of the USSR in 1991. The serial number prefix 'мБ' (mB in Latin) indicates a specific print run. The note shown here displays denomination '10' on the front but '5' on the back, which suggests a mismatched pair (see flags). Standard 10-ruble notes of this series feature olive-green tones and depict Lenin on the front, not this design.",
    "language_script": "Cyrillic, Latin",
    "languages": "ru,lv,lt,et,ka,hy,az,uz,tg,tk,ky,kk,ro,uk,be",

    "serial_number": "мБ 3917567",
    "serial_prefix": "мБ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Circulated with visible folds and handling wear. Some soiling on both sides. Paper remains intact without tears.",

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

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 0.7,
      "series_name": 0.95,
      "series_year": 1.0,
      "issue_year": 1.0,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.95,
      "material": 0.95,
      "dimensions_mm": 0.9,
      "watermark": 0.9,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "pick_number": 0.85,
      "serial_number": 0.95,
      "front_description": 0.9,
      "back_description": 0.9,
      "historical_notes": 0.9,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.65,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble", "denomination": "10 Rubles", "series_year": "1961", "series_name": "Fourth series", "series_range": "1961\u20131991", "issue_year": "1961", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (Third series)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0411\u0430\u043d\u043a \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "150x75", "watermark": "Hammer and sickle with stars", "security_features": "microprint,intaglio,raised_print", "color_palette": "#d4917b,#e6d5a8,#8b4513", "portrait_subject": null, "reverse_subject": "Spasskaya Tower of Moscow Kremlin", "themes": "architecture,statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": "233a", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "State emblem of the USSR (hammer and sickle within wreath) at center. The denomination '10 \u0420\u0423\u0411\u041b\u0415\u0419' (10 Rubles) appears in multilingual text representing all fifteen Soviet republics, including Russian, Latvian, Lithuanian, Estonian, Georgian, Armenian, Azerbaijani, Uzbek, Tajik, Turkmen, Kyrgyz, Kazakh, Moldovan, Ukrainian, and Belarusian. This multilingual design was introduced in the 1961 currency reform to emphasize the unity of the Soviet republics. The text '\u041f\u041e\u0414\u0414\u0415\u041b\u041a\u0410 \u0411\u0418\u041b\u0415\u0422\u041e\u0412 \u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u041e\u0413\u041e \u0411\u0410\u041d\u041a\u0410 \u0421\u0421\u0421\u0420 \u041f\u0420\u0415\u0421\u041b\u0415\u0414\u0423\u0415\u0422\u0421\u042f \u041f\u041e \u0417\u0410\u041a\u041e\u041d\u0423' (Forgery of State Bank of the USSR notes is prosecuted by law) serves as an anti-counterfeiting warning.", "back_description": "Spasskaya Tower (Savior Tower) of the Moscow Kremlin, the most famous of the Kremlin towers, built in 1491 by Italian architect Pietro Antonio Solari. The tower houses the Kremlin Clock and serves as the main entrance to Red Square. The State coat of arms of the USSR appears at top left. The year '1961' is printed on the lower left, marking the major currency reform that redenominated the ruble at a rate of 10:1. The text '\u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u042b\u0419 \u041a\u0410\u0417\u041d\u0410\u0427\u0415\u0419\u0421\u041a\u0418\u0419 \u0411\u0418\u041b\u0415\u0422 \u0421\u0421\u0421\u0420' (State Treasury Note of the USSR) appears across the top, and '\u041f\u044f\u0442\u044c \u0440\u0443\u0431\u043b\u0435\u0439' (Five rubles) appears prominently at center, with the denomination repeated at right.", "historical_notes": "This note belongs to the Fourth series of Soviet banknotes, issued following the 1961 monetary reform under Nikita Khrushchev. The reform redenominated the ruble at 10:1 (10 old rubles = 1 new ruble) and aimed to simplify accounting and combat inflation. The 1961 series was the first to feature all fifteen Soviet republic languages, reflecting the official policy of national unity. These notes remained in circulation until the dissolution of the USSR in 1991. The serial number prefix '\u043c\u0411' (mB in Latin) indicates a specific print run. The note shown here displays denomination '10' on the front but '5' on the back, which suggests a mismatched pair (see flags). Standard 10-ruble notes of this series feature olive-green tones and depict Lenin on the front, not this design.", "language_script": "Cyrillic, Latin", "languages": "ru,lv,lt,et,ka,hy,az,uz,tg,tk,ky,kk,ro,uk,be", "serial_number": "\u043c\u0411 3917567", "serial_prefix": "\u043c\u0411", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Circulated with visible folds and handling wear. Some soiling on both sides. Paper remains intact without tears.", "estimated_value_low": 5, "estimated_value_high": 15, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 0.7, "series_name": 0.95, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.95, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.9, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.85, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.9, "condition_grade": 0.85}, "overall_confidence": 0.65, "flags": ["mismatched_pair"]}

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


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:10:29
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": "Soviet Ruble",
    "denomination": null,
    "series_year": "1961",
    "series_name": "1961 Soviet Ruble Series",
    "series_range": "1961–1991",
    "issue_year": "1961",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1993",
    "predecessor_currency": "1947 Soviet Ruble",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственный Банк СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": null,
    "watermark": "Stars and waves pattern",
    "security_features": "intaglio,microprint",
    "color_palette": "#d4a574,#8b7355,#4a6741",

    "portrait_subject": null,
    "reverse_subject": "Spasskaya Tower of the Moscow Kremlin",
    "themes": "architecture,statesman",
    "commemorative": false,
    "commemorative_occasion": null,

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

    "front_description": "This note features the State Emblem of the Soviet Union (hammer and sickle surrounded by wheat sheaves with a red star above and ribbon inscriptions in the languages of the Soviet republics) and denomination text in Russian 'ДЕСЯТЬ РУБЛЕЙ' (Ten Rubles). The denomination appears in multiple languages of the USSR constituent republics at bottom right, reflecting the multinational character of the Soviet state. Text warns that counterfeiting State Bank notes is prosecuted by law.",
    "back_description": "The Spasskaya Tower (Saviour Tower) of the Moscow Kremlin, the most famous of the Kremlin's towers, featuring its iconic clock and ruby star. Built in 1491 by Italian architect Pietro Antonio Solari, the tower served as the main entrance to the Kremlin and became a symbol of Soviet and Russian state power. The State Emblem of the USSR appears at upper left with legal tender text below stating these treasury notes are backed by all assets of the USSR.",
    "historical_notes": "CRITICAL FLAG: These two images are NOT the front and back of the same banknote. The front image shows a 10 Ruble note (serial мЬ 3917567) while the back image shows a 5 Ruble Treasury Note (Государственный Казначейский Билет) dated 1961. Both belong to the 1961 Soviet currency reform series introduced under Khrushchev, which redenominated the ruble at 10:1 ratio. The 1961 series remained legal tender until the dissolution of the USSR in 1991 and was formally demonetized in Russia by 1993. The front 10 Ruble note would be P-233 or P-240 depending on variety, while the back 5 Ruble treasury note is P-224.",
    "language_script": "Cyrillic",
    "languages": "ru,uk,be,uz,ka,az,lt,lv,et,ky,tg,am,tk,md",

    "serial_number": "мЬ 3917567",
    "serial_prefix": "мЬ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "F",
    "condition_notes": "Both notes show significant circulation wear, folds, soiling, and edge wear consistent with extended circulation",

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

    "field_confidence": {
      "country": 0.95,
      "currency": 0.98,
      "denomination": 0.3,
      "series_name": 0.95,
      "series_year": 0.98,
      "issue_year": 0.95,
      "issuer": 0.98,
      "signatures": 0.0,
      "printer": 0.9,
      "material": 0.95,
      "dimensions_mm": 0.0,
      "watermark": 0.7,
      "portrait_subject": 0.0,
      "reverse_subject": 0.95,
      "pick_number": 0.0,
      "serial_number": 0.95,
      "front_description": 0.85,
      "back_description": 0.9,
      "historical_notes": 0.95,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.45,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": null, "currency": "Soviet Ruble", "denomination": null, "series_year": "1961", "series_name": "1961 Soviet Ruble Series", "series_range": "1961\u20131991", "issue_year": "1961", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1993", "predecessor_currency": "1947 Soviet Ruble", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0411\u0430\u043d\u043a \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": "Stars and waves pattern", "security_features": "intaglio,microprint", "color_palette": "#d4a574,#8b7355,#4a6741", "portrait_subject": null, "reverse_subject": "Spasskaya Tower of the Moscow Kremlin", "themes": "architecture,statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "This note features the State Emblem of the Soviet Union (hammer and sickle surrounded by wheat sheaves with a red star above and ribbon inscriptions in the languages of the Soviet republics) and denomination text in Russian '\u0414\u0415\u0421\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Ten Rubles). The denomination appears in multiple languages of the USSR constituent republics at bottom right, reflecting the multinational character of the Soviet state. Text warns that counterfeiting State Bank notes is prosecuted by law.", "back_description": "The Spasskaya Tower (Saviour Tower) of the Moscow Kremlin, the most famous of the Kremlin's towers, featuring its iconic clock and ruby star. Built in 1491 by Italian architect Pietro Antonio Solari, the tower served as the main entrance to the Kremlin and became a symbol of Soviet and Russian state power. The State Emblem of the USSR appears at upper left with legal tender text below stating these treasury notes are backed by all assets of the USSR.", "historical_notes": "CRITICAL FLAG: These two images are NOT the front and back of the same banknote. The front image shows a 10 Ruble note (serial \u043c\u042c 3917567) while the back image shows a 5 Ruble Treasury Note (\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u041a\u0430\u0437\u043d\u0430\u0447\u0435\u0439\u0441\u043a\u0438\u0439 \u0411\u0438\u043b\u0435\u0442) dated 1961. Both belong to the 1961 Soviet currency reform series introduced under Khrushchev, which redenominated the ruble at 10:1 ratio. The 1961 series remained legal tender until the dissolution of the USSR in 1991 and was formally demonetized in Russia by 1993. The front 10 Ruble note would be P-233 or P-240 depending on variety, while the back 5 Ruble treasury note is P-224.", "language_script": "Cyrillic", "languages": "ru,uk,be,uz,ka,az,lt,lv,et,ky,tg,am,tk,md", "serial_number": "\u043c\u042c 3917567", "serial_prefix": "\u043c\u042c", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Both notes show significant circulation wear, folds, soiling, and edge wear consistent with extended circulation", "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 0.95, "currency": 0.98, "denomination": 0.3, "series_name": 0.95, "series_year": 0.98, "issue_year": 0.95, "issuer": 0.98, "signatures": 0.0, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.7, "portrait_subject": 0.0, "reverse_subject": 0.95, "pick_number": 0.0, "serial_number": 0.95, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.8}, "overall_confidence": 0.45, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.95, "currency": 0.98, "denomination": 0.3, "series_name": 0.95, "series_year": 0.98, "issue_year": 0.95, "issuer": 0.98, "signatures": 0.0, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.7, "portrait_subject": 0.0, "reverse_subject": 0.95, "pick_number": 0.0, "serial_number": 0.95, "front_description": 0.85, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.8}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:10:34
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
    "denomination": "5",
    "series_year": "1961",
    "series_name": "1961 Reform series",
    "series_range": "1961–1991",
    "issue_year": "1961",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (1947 series)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "ГОСУДАРСТВЕННЫЙ КАЗНАЧЕЙСКИЙ БИЛЕТ СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "107x57",
    "watermark": "Stars pattern",
    "security_features": "microprint,intaglio",
    "color_palette": "#d4a574,#e8d5c0,#8b7355",

    "portrait_subject": null,
    "reverse_subject": "Spasskaya Tower of Moscow Kremlin",
    "themes": "architecture,statesman",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-224",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "State Treasury Note of the USSR, 5 rubles denomination. The front features multilingual text in fifteen languages of the Soviet republics (Russian, Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kyrgyz, Tajik, Armenian, Turkmen, and Estonian) stating the denomination and legal tender status. The text reads 'ПЯТЬ РУБЛЕЙ' (Five Rubles) prominently at center, surrounded by ornate guilloche patterns in pastel shades. This design reflects the multi-ethnic character of the Soviet Union and was part of the 1961 currency reform that redenominated the ruble at a ratio of 10:1.",

    "back_description": "Spasskaya Tower of the Moscow Kremlin, the principal tower facing Red Square, built in 1491 by Italian architect Pietro Antonio Solari and later topped with its distinctive tent roof and star in the Soviet era. The tower houses the famous Kremlin chimes and serves as the symbolic gateway to the Kremlin. The back also displays the Soviet coat of arms (hammer and sickle with globe and rising sun) at upper left, with text 'ГОСУДАРСТВЕННЫЙ КАЗНАЧЕЙСКИЙ БИЛЕТ СССР' (State Treasury Note of the USSR) and 'Пять рублей' (Five Rubles). The denomination '5' appears in numerals at corners. Year 1961 is printed in small text on the left side.",

    "historical_notes": "This 5-ruble note belongs to the 1961 Reform series issued by the State Bank of the USSR following Khrushchev's currency reform of January 1, 1961, which redenominated the Soviet ruble at 10 old rubles to 1 new ruble. The reform aimed to simplify monetary calculations and remove excess currency from circulation following post-WWII inflation. This series remained in circulation throughout the late Soviet period until the dissolution of the USSR in 1991. The multilingual text on the front demonstrates Soviet policy of recognizing the fifteen constituent republics. The note was printed by Goznak (the Soviet state printing works). The serial number format (Cyrillic prefix + digits) was standard for Soviet banknotes of this era. These notes are now common in the numismatic market as large quantities survived the Soviet collapse.",

    "language_script": "Cyrillic, Latin, Armenian, Georgian",
    "languages": "ru,uk,be,uz,kk,ka,az,lt,ro,lv,ky,tg,hy,tk,et",

    "serial_number": "хЬ 7950413",
    "serial_prefix": "хЬ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "F",
    "condition_notes": "Circulated note with visible wear, creasing, and some soiling. Paper shows age-related discoloration. Overall structure intact.",

    "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": 0.95,
      "issue_year": 0.95,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.9,
      "material": 1.0,
      "dimensions_mm": 0.9,
      "watermark": 0.7,
      "portrait_subject": 1.0,
      "reverse_subject": 0.95,
      "pick_number": 0.95,
      "serial_number": 0.95,
      "front_description": 0.9,
      "back_description": 0.9,
      "historical_notes": 0.9,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.92,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble", "denomination": "5", "series_year": "1961", "series_name": "1961 Reform series", "series_range": "1961\u20131991", "issue_year": "1961", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (1947 series)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u042b\u0419 \u041a\u0410\u0417\u041d\u0410\u0427\u0415\u0419\u0421\u041a\u0418\u0419 \u0411\u0418\u041b\u0415\u0422 \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "107x57", "watermark": "Stars pattern", "security_features": "microprint,intaglio", "color_palette": "#d4a574,#e8d5c0,#8b7355", "portrait_subject": null, "reverse_subject": "Spasskaya Tower of Moscow Kremlin", "themes": "architecture,statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-224", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "State Treasury Note of the USSR, 5 rubles denomination. The front features multilingual text in fifteen languages of the Soviet republics (Russian, Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kyrgyz, Tajik, Armenian, Turkmen, and Estonian) stating the denomination and legal tender status. The text reads '\u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Five Rubles) prominently at center, surrounded by ornate guilloche patterns in pastel shades. This design reflects the multi-ethnic character of the Soviet Union and was part of the 1961 currency reform that redenominated the ruble at a ratio of 10:1.", "back_description": "Spasskaya Tower of the Moscow Kremlin, the principal tower facing Red Square, built in 1491 by Italian architect Pietro Antonio Solari and later topped with its distinctive tent roof and star in the Soviet era. The tower houses the famous Kremlin chimes and serves as the symbolic gateway to the Kremlin. The back also displays the Soviet coat of arms (hammer and sickle with globe and rising sun) at upper left, with text '\u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u042b\u0419 \u041a\u0410\u0417\u041d\u0410\u0427\u0415\u0419\u0421\u041a\u0418\u0419 \u0411\u0418\u041b\u0415\u0422 \u0421\u0421\u0421\u0420' (State Treasury Note of the USSR) and '\u041f\u044f\u0442\u044c \u0440\u0443\u0431\u043b\u0435\u0439' (Five Rubles). The denomination '5' appears in numerals at corners. Year 1961 is printed in small text on the left side.", "historical_notes": "This 5-ruble note belongs to the 1961 Reform series issued by the State Bank of the USSR following Khrushchev's currency reform of January 1, 1961, which redenominated the Soviet ruble at 10 old rubles to 1 new ruble. The reform aimed to simplify monetary calculations and remove excess currency from circulation following post-WWII inflation. This series remained in circulation throughout the late Soviet period until the dissolution of the USSR in 1991. The multilingual text on the front demonstrates Soviet policy of recognizing the fifteen constituent republics. The note was printed by Goznak (the Soviet state printing works). The serial number format (Cyrillic prefix + digits) was standard for Soviet banknotes of this era. These notes are now common in the numismatic market as large quantities survived the Soviet collapse.", "language_script": "Cyrillic, Latin, Armenian, Georgian", "languages": "ru,uk,be,uz,kk,ka,az,lt,ro,lv,ky,tg,hy,tk,et", "serial_number": "\u0445\u042c 7950413", "serial_prefix": "\u0445\u042c", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "F", "condition_notes": "Circulated note with visible wear, creasing, and some soiling. Paper shows age-related discoloration. Overall structure intact.", "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": 0.95, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.0, "printer": 0.9, "material": 1.0, "dimensions_mm": 0.9, "watermark": 0.7, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.95, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.9, "condition_grade": 0.85}, "overall_confidence": 0.92, "flags": []}

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


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:11:17
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
    "denomination": "5",
    "series_year": "1961",
    "series_name": "Issue of 1961",
    "series_range": "1961–1991",
    "issue_year": "1961",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (reform of 1947)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственный Казначейский Билет СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "111x57",
    "watermark": "Star pattern in clear field",
    "security_features": "microprint,intaglio,watermark",
    "color_palette": "#d4c5a0,#8b9ba8,#c19a6b",

    "portrait_subject": null,
    "reverse_subject": "Spasskaya Tower of the Moscow Kremlin",
    "themes": "architecture,statesman,political",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-224",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "The front of this State Treasury note bears the denomination '5 РУБЛЕЙ' (5 Rubles) in the center with multilingual text stating 'FIVE RUBLES' in the languages of the Soviet republics (Russian, Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kirghiz, Tajik, Armenian, Turkmen, Estonian). The text at bottom reads 'Forgery of State Treasury notes is punishable by law.' This denomination was part of the 1961 currency reform that revalued the Soviet ruble at 10:1, introducing a new series designed to project stability and Soviet unity.",
    "back_description": "The Spasskaya Tower of the Moscow Kremlin, the most iconic tower of the Kremlin complex. Built in 1491 by Italian architect Pietro Antonio Solari, it features the famous chiming clock and serves as the main ceremonial entrance to the Kremlin. The tower was topped with the Soviet star in 1937. The State Emblem of the USSR (hammer and sickle surrounded by wheat sheaves) appears at upper left. The date '1961' appears prominently, marking the year of the monetary reform.",
    "historical_notes": "This note belongs to the 1961 currency reform series issued by the State Bank of the USSR. The reform, announced on January 1, 1961, exchanged old rubles for new at a 10:1 ratio and was designed to combat inflation and simplify calculations. The series featured multilingual inscriptions reflecting all 15 Soviet republics, emphasizing Soviet unity. These notes remained legal tender throughout the Soviet period until the dissolution of the USSR in 1991, when they were gradually replaced by Russian Federation currency. The series was printed by Goznak (the Soviet state security printer). This specific design with the Kremlin tower became one of the most recognizable Soviet banknotes. The note shows serial number aa 8234361 with lowercase Cyrillic prefix.",
    "language_script": "Cyrillic with multilingual inscriptions",
    "languages": "ru,uk,be,uz,kk,ka,az,lt,ro,lv,ky,tg,hy,tk,et",

    "serial_number": "aa 8234361",
    "serial_prefix": "aa",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note shows circulation wear with visible creases and some discoloration but retains reasonable detail",

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

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 1.0,
      "series_year": 1.0,
      "issue_year": 1.0,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.95,
      "material": 1.0,
      "dimensions_mm": 0.95,
      "watermark": 0.85,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "pick_number": 1.0,
      "serial_number": 0.98,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.96,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble", "denomination": "5", "series_year": "1961", "series_name": "Issue of 1961", "series_range": "1961\u20131991", "issue_year": "1961", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (reform of 1947)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u041a\u0430\u0437\u043d\u0430\u0447\u0435\u0439\u0441\u043a\u0438\u0439 \u0411\u0438\u043b\u0435\u0442 \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "111x57", "watermark": "Star pattern in clear field", "security_features": "microprint,intaglio,watermark", "color_palette": "#d4c5a0,#8b9ba8,#c19a6b", "portrait_subject": null, "reverse_subject": "Spasskaya Tower of the Moscow Kremlin", "themes": "architecture,statesman,political", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-224", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The front of this State Treasury note bears the denomination '5 \u0420\u0423\u0411\u041b\u0415\u0419' (5 Rubles) in the center with multilingual text stating 'FIVE RUBLES' in the languages of the Soviet republics (Russian, Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kirghiz, Tajik, Armenian, Turkmen, Estonian). The text at bottom reads 'Forgery of State Treasury notes is punishable by law.' This denomination was part of the 1961 currency reform that revalued the Soviet ruble at 10:1, introducing a new series designed to project stability and Soviet unity.", "back_description": "The Spasskaya Tower of the Moscow Kremlin, the most iconic tower of the Kremlin complex. Built in 1491 by Italian architect Pietro Antonio Solari, it features the famous chiming clock and serves as the main ceremonial entrance to the Kremlin. The tower was topped with the Soviet star in 1937. The State Emblem of the USSR (hammer and sickle surrounded by wheat sheaves) appears at upper left. The date '1961' appears prominently, marking the year of the monetary reform.", "historical_notes": "This note belongs to the 1961 currency reform series issued by the State Bank of the USSR. The reform, announced on January 1, 1961, exchanged old rubles for new at a 10:1 ratio and was designed to combat inflation and simplify calculations. The series featured multilingual inscriptions reflecting all 15 Soviet republics, emphasizing Soviet unity. These notes remained legal tender throughout the Soviet period until the dissolution of the USSR in 1991, when they were gradually replaced by Russian Federation currency. The series was printed by Goznak (the Soviet state security printer). This specific design with the Kremlin tower became one of the most recognizable Soviet banknotes. The note shows serial number aa 8234361 with lowercase Cyrillic prefix.", "language_script": "Cyrillic with multilingual inscriptions", "languages": "ru,uk,be,uz,kk,ka,az,lt,ro,lv,ky,tg,hy,tk,et", "serial_number": "aa 8234361", "serial_prefix": "aa", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows circulation wear with visible creases and some discoloration but retains reasonable detail", "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 1.0, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.95, "material": 1.0, "dimensions_mm": 0.95, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 1.0, "serial_number": 0.98, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.85}, "overall_confidence": 0.96, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 1.0, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.95, "material": 1.0, "dimensions_mm": 0.95, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 1.0, "serial_number": 0.98, "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 07:11:17
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Russia",
    "currency": "Ruble",
    "denomination": "250",
    "series_year": "1917",
    "series_name": "Far Eastern Republic issue",
    "series_range": "1920-1922",
    "issue_year": "1920",
    "era": "1900_1945",
    "legal_status": "demonetized",
    "legal_status_date": "1922",
    "predecessor_currency": null,
    "successor_currency": "Soviet Ruble",

    "issuer": "State Credit Note of the Far Eastern Republic",
    "issuer_native": "Государственный Кредитный Билет Дальневосточной Республики",
    "signatures": "Upravlyayushchiy (Manager): signature visible; Kassir (Cashier): signature visible",
    "printer": null,
    "engraver": null,

    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": "intaglio,microprint",
    "color_palette": "#d4b896,#8b5a5a,#2d4a2e",

    "portrait_subject": null,
    "reverse_subject": "Mount and agricultural scene with plow",
    "themes": "agriculture,transport,industry",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "S1203",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "scarce",

    "front_description": "State Credit Note of the Far Eastern Republic (Государственный Кредитный Билет Дальневосточной Республики), 250 rubles, dated 1917 but issued circa 1920. The Far Eastern Republic (1920-1922) was a nominally independent buffer state in eastern Siberia that existed between Soviet Russia and Japan-occupied territories during the Russian Civil War. This note represents the transitional currency issued by this short-lived republic before its reintegration into Soviet Russia. The denomination of 250 rubles reflects the hyperinflationary pressures of the Civil War period. Text indicates the note is secured by all property of the republic, backed with gold coins, and contains 17.424 shares of pure gold.",
    "back_description": "Agricultural scene with a horse-drawn plow in the foreground and a prominent mountain in the background, likely representing the natural resources and agricultural economy of the Far Eastern territories. The text 'Дальневосточной Республики' (Far Eastern Republic) appears centrally, with the date 1920 below. The imagery emphasizes the agrarian foundation of the region and its natural landscape. Red signatures of the Manager (Upravlyayushchiy) and Cashier (Kassir) appear at bottom left and right.",
    "historical_notes": "This 250 ruble note was issued by the Far Eastern Republic (Дальневосточная Республика), a buffer state that existed from April 1920 to November 1922 in eastern Siberia and the Russian Far East. Created under Soviet influence to avoid direct military confrontation with Japanese occupation forces, the republic had its capital in Chita (later Vladivostok). The note is dated 1917 on the front (likely referencing an earlier printing series or design authorization), but was actually issued circa 1920 during the republic's existence. Serial number AA 086 and AA 01019 (front and back respectively) suggest this is from an early print run. The Far Eastern Republic was dissolved and incorporated into the Russian Soviet Federative Socialist Republic in 1922 after Japanese withdrawal. These notes became demonetized upon reunification. The hyperinflationary context of the Russian Civil War necessitated high denominations like this 250 ruble note.",
    "language_script": "Cyrillic",
    "languages": "ru",

    "serial_number": "AA 086",
    "serial_prefix": "AA",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Center fold visible, some edge wear and minor soiling, small tears at top edge, otherwise intact with clear printing and readable text",

    "estimated_value_low": 50,
    "estimated_value_high": 150,
    "value_currency": "USD",

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.95,
      "series_year": 0.9,
      "issue_year": 0.85,
      "issuer": 1.0,
      "signatures": 0.7,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.0,
      "watermark": 0.3,
      "portrait_subject": 1.0,
      "reverse_subject": 0.85,
      "pick_number": 0.9,
      "serial_number": 0.95,
      "front_description": 0.9,
      "back_description": 0.85,
      "historical_notes": 0.9,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.88,
    "flags": ["mismatched_serial"]
  }
  ```

parsed_json:
  {"country": "Russia", "currency": "Ruble", "denomination": "250", "series_year": "1917", "series_name": "Far Eastern Republic issue", "series_range": "1920-1922", "issue_year": "1920", "era": "1900_1945", "legal_status": "demonetized", "legal_status_date": "1922", "predecessor_currency": null, "successor_currency": "Soviet Ruble", "issuer": "State Credit Note of the Far Eastern Republic", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u041a\u0440\u0435\u0434\u0438\u0442\u043d\u044b\u0439 \u0411\u0438\u043b\u0435\u0442 \u0414\u0430\u043b\u044c\u043d\u0435\u0432\u043e\u0441\u0442\u043e\u0447\u043d\u043e\u0439 \u0420\u0435\u0441\u043f\u0443\u0431\u043b\u0438\u043a\u0438", "signatures": "Upravlyayushchiy (Manager): signature visible; Kassir (Cashier): signature visible", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": "intaglio,microprint", "color_palette": "#d4b896,#8b5a5a,#2d4a2e", "portrait_subject": null, "reverse_subject": "Mount and agricultural scene with plow", "themes": "agriculture,transport,industry", "commemorative": false, "commemorative_occasion": null, "pick_number": "S1203", "krause_id": null, "wpm_id": null, "rarity_tier": "scarce", "front_description": "State Credit Note of the Far Eastern Republic (\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u041a\u0440\u0435\u0434\u0438\u0442\u043d\u044b\u0439 \u0411\u0438\u043b\u0435\u0442 \u0414\u0430\u043b\u044c\u043d\u0435\u0432\u043e\u0441\u0442\u043e\u0447\u043d\u043e\u0439 \u0420\u0435\u0441\u043f\u0443\u0431\u043b\u0438\u043a\u0438), 250 rubles, dated 1917 but issued circa 1920. The Far Eastern Republic (1920-1922) was a nominally independent buffer state in eastern Siberia that existed between Soviet Russia and Japan-occupied territories during the Russian Civil War. This note represents the transitional currency issued by this short-lived republic before its reintegration into Soviet Russia. The denomination of 250 rubles reflects the hyperinflationary pressures of the Civil War period. Text indicates the note is secured by all property of the republic, backed with gold coins, and contains 17.424 shares of pure gold.", "back_description": "Agricultural scene with a horse-drawn plow in the foreground and a prominent mountain in the background, likely representing the natural resources and agricultural economy of the Far Eastern territories. The text '\u0414\u0430\u043b\u044c\u043d\u0435\u0432\u043e\u0441\u0442\u043e\u0447\u043d\u043e\u0439 \u0420\u0435\u0441\u043f\u0443\u0431\u043b\u0438\u043a\u0438' (Far Eastern Republic) appears centrally, with the date 1920 below. The imagery emphasizes the agrarian foundation of the region and its natural landscape. Red signatures of the Manager (Upravlyayushchiy) and Cashier (Kassir) appear at bottom left and right.", "historical_notes": "This 250 ruble note was issued by the Far Eastern Republic (\u0414\u0430\u043b\u044c\u043d\u0435\u0432\u043e\u0441\u0442\u043e\u0447\u043d\u0430\u044f \u0420\u0435\u0441\u043f\u0443\u0431\u043b\u0438\u043a\u0430), a buffer state that existed from April 1920 to November 1922 in eastern Siberia and the Russian Far East. Created under Soviet influence to avoid direct military confrontation with Japanese occupation forces, the republic had its capital in Chita (later Vladivostok). The note is dated 1917 on the front (likely referencing an earlier printing series or design authorization), but was actually issued circa 1920 during the republic's existence. Serial number AA 086 and AA 01019 (front and back respectively) suggest this is from an early print run. The Far Eastern Republic was dissolved and incorporated into the Russian Soviet Federative Socialist Republic in 1922 after Japanese withdrawal. These notes became demonetized upon reunification. The hyperinflationary context of the Russian Civil War necessitated high denominations like this 250 ruble note.", "language_script": "Cyrillic", "languages": "ru", "serial_number": "AA 086", "serial_prefix": "AA", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Center fold visible, some edge wear and minor soiling, small tears at top edge, otherwise intact with clear printing and readable text", "estimated_value_low": 50, "estimated_value_high": 150, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 0.9, "issue_year": 0.85, "issuer": 1.0, "signatures": 0.7, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.3, "portrait_subject": 1.0, "reverse_subject": 0.85, "pick_number": 0.9, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.85, "historical_notes": 0.9, "condition_grade": 0.8}, "overall_confidence": 0.88, "flags": ["mismatched_serial"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 0.9, "issue_year": 0.85, "issuer": 1.0, "signatures": 0.7, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.3, "portrait_subject": 1.0, "reverse_subject": 0.85, "pick_number": 0.9, "serial_number": 0.95, "front_description": 0.9, "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 07:11:20
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Russia",
    "currency": "RUB",
    "denomination": "5",
    "series_year": "1961",
    "series_name": "State Treasury Notes of 1961",
    "series_range": "1961–1991",
    "issue_year": null,
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (1947 reform)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "Государственный банк СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "114x57",
    "watermark": null,
    "security_features": "microprint,intaglio",
    "color_palette": "#d4a373,#c8b59a,#9b8579",

    "portrait_subject": null,
    "reverse_subject": "Double-headed eagle of the Russian Soviet Federative Socialist Republic",
    "themes": "statesman,architecture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "224",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "State Treasury Note of 5 rubles issued by the State Bank of the USSR during the 1961 currency reform. This reform denominated the Soviet ruble at a 10:1 ratio, replacing the 1947 series notes. The front features an ornate multicoloured guilloche design with the denomination '5' in decorative frames at left and right corners, and text in Russian stating 'ПЯТЬ РУБЛЕЙ' (Five Rubles) at center. Below the main denomination text is a multilingual declaration in Russian, Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kyrgyz, Tajik, Armenian, Turkmen, and Estonian stating 'Counterfeiting of state treasury notes is punishable by law.' Serial number ШВ 9789923 appears at bottom.",
    "back_description": "Double-headed eagle emblem of the Russian Soviet Federative Socialist Republic (RSFSR) at center, featuring a two-headed eagle with wings spread, positioned within an ornate guilloche rosette. The denomination appears four times: 'РУБЛЕЙ' (rubles) at top left and right, with stylized '5' numerals in decorative frames at left and right center, and 'РУБЛЕЙ' repeated at bottom left and right. The inscription 'ПОДДЕЛКА КРЕДИТНЫХ БИЛЕТОВ ПРЕСЛЕДУЕТСЯ ПО ЗАКОНУ' (Counterfeiting of credit notes is punishable by law) appears at center bottom. The RSFSR eagle was used on Soviet banknotes of this series to represent one of the constituent republics.",
    "historical_notes": "This note belongs to the 1961 State Treasury Notes series (Государственные казначейские билеты), issued following Khrushchev's currency reform of January 1, 1961. The reform redenominated the Soviet ruble at 10 old rubles = 1 new ruble, with the stated goal of simplifying accounting and eliminating large-denomination notes from circulation. The 1961 series remained in use throughout the remainder of the Soviet period until demonetization in 1991 after the collapse of the USSR. These notes were issued alongside State Bank Notes (credit rubles) of the same design family. The multilingual text reflects the multinational character of the Soviet Union, with denominations printed in all 15 official languages of the union republics. Pick number P-224. The serial number prefix 'ШВ' corresponds to a documented print block. No specific issue year can be determined from the serial number alone for this series, as Goznak used block prefixes rather than year encoding. The 1961 series was printed continuously from 1961 through the late 1980s with the same basic design.",
    "language_script": "Cyrillic",
    "languages": "ru,uk,be,uz,kk,ka,az,lt,ro,lv,ky,tg,hy,tk,et",

    "serial_number": "ШВ 9789923",
    "serial_prefix": "ШВ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "XF",
    "condition_notes": "Note shows light circulation with minor wear and handling marks, good paper quality with no major damage visible.",

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

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

parsed_json:
  {"country": "Russia", "currency": "RUB", "denomination": "5", "series_year": "1961", "series_name": "State Treasury Notes of 1961", "series_range": "1961\u20131991", "issue_year": null, "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (1947 reform)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0431\u0430\u043d\u043a \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "114x57", "watermark": null, "security_features": "microprint,intaglio", "color_palette": "#d4a373,#c8b59a,#9b8579", "portrait_subject": null, "reverse_subject": "Double-headed eagle of the Russian Soviet Federative Socialist Republic", "themes": "statesman,architecture", "commemorative": false, "commemorative_occasion": null, "pick_number": "224", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "State Treasury Note of 5 rubles issued by the State Bank of the USSR during the 1961 currency reform. This reform denominated the Soviet ruble at a 10:1 ratio, replacing the 1947 series notes. The front features an ornate multicoloured guilloche design with the denomination '5' in decorative frames at left and right corners, and text in Russian stating '\u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Five Rubles) at center. Below the main denomination text is a multilingual declaration in Russian, Ukrainian, Belarusian, Uzbek, Kazakh, Georgian, Azerbaijani, Lithuanian, Moldavian, Latvian, Kyrgyz, Tajik, Armenian, Turkmen, and Estonian stating 'Counterfeiting of state treasury notes is punishable by law.' Serial number \u0428\u0412 9789923 appears at bottom.", "back_description": "Double-headed eagle emblem of the Russian Soviet Federative Socialist Republic (RSFSR) at center, featuring a two-headed eagle with wings spread, positioned within an ornate guilloche rosette. The denomination appears four times: '\u0420\u0423\u0411\u041b\u0415\u0419' (rubles) at top left and right, with stylized '5' numerals in decorative frames at left and right center, and '\u0420\u0423\u0411\u041b\u0415\u0419' repeated at bottom left and right. The inscription '\u041f\u041e\u0414\u0414\u0415\u041b\u041a\u0410 \u041a\u0420\u0415\u0414\u0418\u0422\u041d\u042b\u0425 \u0411\u0418\u041b\u0415\u0422\u041e\u0412 \u041f\u0420\u0415\u0421\u041b\u0415\u0414\u0423\u0415\u0422\u0421\u042f \u041f\u041e \u0417\u0410\u041a\u041e\u041d\u0423' (Counterfeiting of credit notes is punishable by law) appears at center bottom. The RSFSR eagle was used on Soviet banknotes of this series to represent one of the constituent republics.", "historical_notes": "This note belongs to the 1961 State Treasury Notes series (\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0435 \u043a\u0430\u0437\u043d\u0430\u0447\u0435\u0439\u0441\u043a\u0438\u0435 \u0431\u0438\u043b\u0435\u0442\u044b), issued following Khrushchev's currency reform of January 1, 1961. The reform redenominated the Soviet ruble at 10 old rubles = 1 new ruble, with the stated goal of simplifying accounting and eliminating large-denomination notes from circulation. The 1961 series remained in use throughout the remainder of the Soviet period until demonetization in 1991 after the collapse of the USSR. These notes were issued alongside State Bank Notes (credit rubles) of the same design family. The multilingual text reflects the multinational character of the Soviet Union, with denominations printed in all 15 official languages of the union republics. Pick number P-224. The serial number prefix '\u0428\u0412' corresponds to a documented print block. No specific issue year can be determined from the serial number alone for this series, as Goznak used block prefixes rather than year encoding. The 1961 series was printed continuously from 1961 through the late 1980s with the same basic design.", "language_script": "Cyrillic", "languages": "ru,uk,be,uz,kk,ka,az,lt,ro,lv,ky,tg,hy,tk,et", "serial_number": "\u0428\u0412 9789923", "serial_prefix": "\u0428\u0412", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "XF", "condition_notes": "Note shows light circulation with minor wear and handling marks, good paper quality with no major damage visible.", "estimated_value_low": 1, "estimated_value_high": 5, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 0.95, "issue_year": 0.5, "issuer": 1.0, "signatures": 0.0, "printer": 0.95, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.7, "portrait_subject": 1.0, "reverse_subject": 0.9, "pick_number": 0.95, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.85, "historical_notes": 0.9, "condition_grade": 0.8}, "overall_confidence": 0.9, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.95, "series_year": 0.95, "issue_year": 0.5, "issuer": 1.0, "signatures": 0.0, "printer": 0.95, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.7, "portrait_subject": 1.0, "reverse_subject": 0.9, "pick_number": 0.95, "serial_number": 0.95, "front_description": 0.9, "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 07:11:21
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Soviet Union",
    "currency": "Soviet Ruble",
    "denomination": "5",
    "series_year": "1961",
    "series_name": "Fourth series Soviet ruble",
    "series_range": "1961–1991",
    "issue_year": "1961",
    "era": "1946_1989",
    "legal_status": "demonetized",
    "legal_status_date": "1991",
    "predecessor_currency": "Soviet Ruble (Third series, 1947)",
    "successor_currency": "Russian Ruble",

    "issuer": "State Bank of the USSR",
    "issuer_native": "ГОСУДАРСТВЕННЫЙ КАЗНАЧЕЙСКИЙ БИЛЕТ СССР",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "114x59",
    "watermark": "Stars pattern in clear field",
    "security_features": "intaglio,microprint",
    "color_palette": "#e6d5b8,#c19a6b,#8b7355",

    "portrait_subject": null,
    "reverse_subject": "Spasskaya Tower of the Moscow Kremlin",
    "themes": "architecture,statesman",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "224",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "State Treasury Note of the USSR (Государственный казначейский билет СССР), 5 rubles denomination. The note features multilingual inscriptions stating 'ПЯТЬ РУБЛЕЙ' (Five Rubles) in Russian and the value repeated in the languages of all 15 Soviet republics (including Georgian, Armenian, Azerbaijani, Kazakh, Uzbek, and others). The front includes ornate guilloche patterns forming rosettes and decorative frames typical of Soviet banknote design, with the text 'Подделка государственных казначейских билетов преследуется по закону' (Counterfeiting of state treasury notes is prosecuted by law) at bottom. This design represented the unified monetary system of all Soviet Socialist Republics from 1961 until the dissolution of the USSR.",

    "back_description": "Spasskaya Tower of the Moscow Kremlin, the iconic clock tower facing Red Square. Built in 1491 by Italian architect Pietro Antonio Solari and topped with its distinctive star in the Soviet era, the Spasskaya Tower is the most recognizable of the Kremlin's towers and serves as the main entrance to the Kremlin. The clock, installed in the 16th century and modified multiple times, is a symbol of Russian timekeeping and state authority. The note displays 'ГОСУДАРСТВЕННЫЙ КАЗНАЧЕЙСКИЙ БИЛЕТ СССР' (State Treasury Note of the USSR) at top, with the Soviet coat of arms featuring hammer and sickle at upper left, and the date '1961' at lower left indicating the year of the 1961 monetary reform.",

    "historical_notes": "This is the 5-ruble State Treasury Note from the Fourth series of Soviet rubles, issued following the January 1961 monetary reform (денежная реформа 1961 года) that redenominated the currency at a ratio of 10:1. The reform replaced the Third series (1947) notes with new lower-denomination currency, with this 5-ruble note being one of the smallest denominations issued. The 1961 series remained in circulation throughout the remainder of Soviet history until the USSR's dissolution in 1991, when these notes were demonetized and replaced by the currencies of the newly independent republics, primarily the Russian ruble. The design emphasized Soviet multinational unity by displaying the denomination in all 15 republican languages. The dated '1961' printed on the note directly indicates the year of this monetary reform. The Spasskaya Tower reverse motif reinforced Moscow and the Kremlin as the center of Soviet power. These notes were printed by Goznak (Гознак), the Soviet state security printing works. The serial number format 'ЮЭ 3071047' is typical for this series, with Cyrillic prefix letters used for different print runs.",

    "language_script": "Cyrillic, Latin, Georgian, Armenian",
    "languages": "ru,uk,be,uz,kk,az,ka,hy,tk,ky,tg,lt,lv,et",

    "serial_number": "ЮЭ 3071047",
    "serial_prefix": "ЮЭ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note shows moderate circulation wear with some soiling and softening of paper, edges intact, no major tears 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": 1.0,
      "series_year": 1.0,
      "issue_year": 1.0,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.95,
      "material": 1.0,
      "dimensions_mm": 0.95,
      "watermark": 0.85,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "pick_number": 1.0,
      "serial_number": 1.0,
      "front_description": 0.95,
      "back_description": 0.95,
      "historical_notes": 0.95,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.96,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Soviet Union", "currency": "Soviet Ruble", "denomination": "5", "series_year": "1961", "series_name": "Fourth series Soviet ruble", "series_range": "1961\u20131991", "issue_year": "1961", "era": "1946_1989", "legal_status": "demonetized", "legal_status_date": "1991", "predecessor_currency": "Soviet Ruble (Third series, 1947)", "successor_currency": "Russian Ruble", "issuer": "State Bank of the USSR", "issuer_native": "\u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u042b\u0419 \u041a\u0410\u0417\u041d\u0410\u0427\u0415\u0419\u0421\u041a\u0418\u0419 \u0411\u0418\u041b\u0415\u0422 \u0421\u0421\u0421\u0420", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "114x59", "watermark": "Stars pattern in clear field", "security_features": "intaglio,microprint", "color_palette": "#e6d5b8,#c19a6b,#8b7355", "portrait_subject": null, "reverse_subject": "Spasskaya Tower of the Moscow Kremlin", "themes": "architecture,statesman", "commemorative": false, "commemorative_occasion": null, "pick_number": "224", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "State Treasury Note of the USSR (\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u043a\u0430\u0437\u043d\u0430\u0447\u0435\u0439\u0441\u043a\u0438\u0439 \u0431\u0438\u043b\u0435\u0442 \u0421\u0421\u0421\u0420), 5 rubles denomination. The note features multilingual inscriptions stating '\u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Five Rubles) in Russian and the value repeated in the languages of all 15 Soviet republics (including Georgian, Armenian, Azerbaijani, Kazakh, Uzbek, and others). The front includes ornate guilloche patterns forming rosettes and decorative frames typical of Soviet banknote design, with the text '\u041f\u043e\u0434\u0434\u0435\u043b\u043a\u0430 \u0433\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0445 \u043a\u0430\u0437\u043d\u0430\u0447\u0435\u0439\u0441\u043a\u0438\u0445 \u0431\u0438\u043b\u0435\u0442\u043e\u0432 \u043f\u0440\u0435\u0441\u043b\u0435\u0434\u0443\u0435\u0442\u0441\u044f \u043f\u043e \u0437\u0430\u043a\u043e\u043d\u0443' (Counterfeiting of state treasury notes is prosecuted by law) at bottom. This design represented the unified monetary system of all Soviet Socialist Republics from 1961 until the dissolution of the USSR.", "back_description": "Spasskaya Tower of the Moscow Kremlin, the iconic clock tower facing Red Square. Built in 1491 by Italian architect Pietro Antonio Solari and topped with its distinctive star in the Soviet era, the Spasskaya Tower is the most recognizable of the Kremlin's towers and serves as the main entrance to the Kremlin. The clock, installed in the 16th century and modified multiple times, is a symbol of Russian timekeeping and state authority. The note displays '\u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u042b\u0419 \u041a\u0410\u0417\u041d\u0410\u0427\u0415\u0419\u0421\u041a\u0418\u0419 \u0411\u0418\u041b\u0415\u0422 \u0421\u0421\u0421\u0420' (State Treasury Note of the USSR) at top, with the Soviet coat of arms featuring hammer and sickle at upper left, and the date '1961' at lower left indicating the year of the 1961 monetary reform.", "historical_notes": "This is the 5-ruble State Treasury Note from the Fourth series of Soviet rubles, issued following the January 1961 monetary reform (\u0434\u0435\u043d\u0435\u0436\u043d\u0430\u044f \u0440\u0435\u0444\u043e\u0440\u043c\u0430 1961 \u0433\u043e\u0434\u0430) that redenominated the currency at a ratio of 10:1. The reform replaced the Third series (1947) notes with new lower-denomination currency, with this 5-ruble note being one of the smallest denominations issued. The 1961 series remained in circulation throughout the remainder of Soviet history until the USSR's dissolution in 1991, when these notes were demonetized and replaced by the currencies of the newly independent republics, primarily the Russian ruble. The design emphasized Soviet multinational unity by displaying the denomination in all 15 republican languages. The dated '1961' printed on the note directly indicates the year of this monetary reform. The Spasskaya Tower reverse motif reinforced Moscow and the Kremlin as the center of Soviet power. These notes were printed by Goznak (\u0413\u043e\u0437\u043d\u0430\u043a), the Soviet state security printing works. The serial number format '\u042e\u042d 3071047' is typical for this series, with Cyrillic prefix letters used for different print runs.", "language_script": "Cyrillic, Latin, Georgian, Armenian", "languages": "ru,uk,be,uz,kk,az,ka,hy,tk,ky,tg,lt,lv,et", "serial_number": "\u042e\u042d 3071047", "serial_prefix": "\u042e\u042d", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows moderate circulation wear with some soiling and softening of paper, edges intact, no major tears 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": 1.0, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.95, "material": 1.0, "dimensions_mm": 0.95, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 1.0, "serial_number": 1.0, "front_description": 0.95, "back_description": 0.95, "historical_notes": 0.95, "condition_grade": 0.85}, "overall_confidence": 0.96, "flags": []}

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


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:11:44
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Russia",
    "currency": "Ruble",
    "denomination": "1000",
    "series_year": "1919",
    "series_name": "State Credit Note Issue 1919",
    "series_range": "1919–1920",
    "issue_year": "1919",
    "era": "1900_1945",
    "legal_status": "demonetized",
    "legal_status_date": "1922",
    "predecessor_currency": "Imperial Ruble",
    "successor_currency": "Soviet Ruble (denomination reform 1922–1924)",

    "issuer": "State Bank of the Russian Soviet Federative Socialist Republic",
    "issuer_native": "Государственный банкъ",
    "signatures": "Cashier: signature visible; Manager: signature visible",
    "printer": "Goznak (State Printing Works)",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": "intaglio,microprint",
    "color_palette": "#8b4513,#d2b48c,#f5f5dc",

    "portrait_subject": null,
    "reverse_subject": "Imperial Russian double-headed eagle",
    "themes": "statesman,architecture,agriculture",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-13b",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "Allegorical scene depicting agricultural labor in rural Russia, showing peasant figures working in the countryside with trees and landscape elements. This design represents the agrarian foundation of the early Soviet economy during the Russian Civil War period. The denomination '1000 РУБЛЕЙ' (1000 rubles) appears prominently, with the warning text 'ПОДДЕЛКА БИЛЕТА ПРЕСЛЕДУЕТСЯ ПО ЗАКОНУ' (Counterfeiting of notes is prosecuted according to law) at bottom center.",

    "back_description": "The Imperial Russian double-headed eagle within a laurel wreath appears at left, representing continuity with pre-revolutionary Russian state symbols despite the political transformation. The ornate center features the text 'ГОСУДАРСТВЕННЫЙ КРЕДИТНЫЙ БИЛЕТЪ СТО РУБЛЕЙ' (State Credit Note One Hundred Rubles) surrounded by elaborate baroque scrollwork and floral motifs. The date '1910' appears at bottom, indicating the design's origins in pre-revolutionary printing plates that were overprinted or reused during the Civil War shortage of paper and printing capacity. Serial number 'ЛМ141171' visible.",

    "historical_notes": "This 1000-ruble note belongs to the State Credit Note series issued by the RSFSR during 1919–1920, a period of hyperinflation and economic chaos during the Russian Civil War. The back design reuses Imperial Russian printing plates from 1910, a common expedient when the Bolshevik government faced severe shortages of paper, ink, and printing capacity. The retention of the Imperial double-headed eagle on notes issued by the Soviet government reflects the pragmatic reuse of existing plates rather than ideological choice. This series was demonetized during the 1922–1924 currency reforms that introduced the chervonets and stabilized the Soviet monetary system. The serial prefix 'ЛМ' indicates a specific print run. No known public serial-year encoding exists for this issuer during this chaotic period.",

    "language_script": "Cyrillic",
    "languages": "ru",

    "serial_number": "ЛМ141171",
    "serial_prefix": "ЛМ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note shows circulation wear with visible fold lines and minor edge wear; colors remain reasonably strong; no major tears evident",

    "estimated_value_low": 15,
    "estimated_value_high": 40,
    "value_currency": "USD",

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.9,
      "series_year": 0.9,
      "issue_year": 0.9,
      "issuer": 0.95,
      "signatures": 0.6,
      "printer": 0.9,
      "material": 1.0,
      "dimensions_mm": 0.0,
      "watermark": 0.5,
      "portrait_subject": 1.0,
      "reverse_subject": 1.0,
      "pick_number": 0.85,
      "serial_number": 0.95,
      "front_description": 0.9,
      "back_description": 0.9,
      "historical_notes": 0.9,
      "condition_grade": 0.75
    },
    "overall_confidence": 0.88,
    "flags": []
  }
  ```

parsed_json:
  {"country": "Russia", "currency": "Ruble", "denomination": "1000", "series_year": "1919", "series_name": "State Credit Note Issue 1919", "series_range": "1919\u20131920", "issue_year": "1919", "era": "1900_1945", "legal_status": "demonetized", "legal_status_date": "1922", "predecessor_currency": "Imperial Ruble", "successor_currency": "Soviet Ruble (denomination reform 1922\u20131924)", "issuer": "State Bank of the Russian Soviet Federative Socialist Republic", "issuer_native": "\u0413\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0431\u0430\u043d\u043a\u044a", "signatures": "Cashier: signature visible; Manager: signature visible", "printer": "Goznak (State Printing Works)", "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": "intaglio,microprint", "color_palette": "#8b4513,#d2b48c,#f5f5dc", "portrait_subject": null, "reverse_subject": "Imperial Russian double-headed eagle", "themes": "statesman,architecture,agriculture", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-13b", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Allegorical scene depicting agricultural labor in rural Russia, showing peasant figures working in the countryside with trees and landscape elements. This design represents the agrarian foundation of the early Soviet economy during the Russian Civil War period. The denomination '1000 \u0420\u0423\u0411\u041b\u0415\u0419' (1000 rubles) appears prominently, with the warning text '\u041f\u041e\u0414\u0414\u0415\u041b\u041a\u0410 \u0411\u0418\u041b\u0415\u0422\u0410 \u041f\u0420\u0415\u0421\u041b\u0415\u0414\u0423\u0415\u0422\u0421\u042f \u041f\u041e \u0417\u0410\u041a\u041e\u041d\u0423' (Counterfeiting of notes is prosecuted according to law) at bottom center.", "back_description": "The Imperial Russian double-headed eagle within a laurel wreath appears at left, representing continuity with pre-revolutionary Russian state symbols despite the political transformation. The ornate center features the text '\u0413\u041e\u0421\u0423\u0414\u0410\u0420\u0421\u0422\u0412\u0415\u041d\u041d\u042b\u0419 \u041a\u0420\u0415\u0414\u0418\u0422\u041d\u042b\u0419 \u0411\u0418\u041b\u0415\u0422\u042a \u0421\u0422\u041e \u0420\u0423\u0411\u041b\u0415\u0419' (State Credit Note One Hundred Rubles) surrounded by elaborate baroque scrollwork and floral motifs. The date '1910' appears at bottom, indicating the design's origins in pre-revolutionary printing plates that were overprinted or reused during the Civil War shortage of paper and printing capacity. Serial number '\u041b\u041c141171' visible.", "historical_notes": "This 1000-ruble note belongs to the State Credit Note series issued by the RSFSR during 1919\u20131920, a period of hyperinflation and economic chaos during the Russian Civil War. The back design reuses Imperial Russian printing plates from 1910, a common expedient when the Bolshevik government faced severe shortages of paper, ink, and printing capacity. The retention of the Imperial double-headed eagle on notes issued by the Soviet government reflects the pragmatic reuse of existing plates rather than ideological choice. This series was demonetized during the 1922\u20131924 currency reforms that introduced the chervonets and stabilized the Soviet monetary system. The serial prefix '\u041b\u041c' indicates a specific print run. No known public serial-year encoding exists for this issuer during this chaotic period.", "language_script": "Cyrillic", "languages": "ru", "serial_number": "\u041b\u041c141171", "serial_prefix": "\u041b\u041c", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows circulation wear with visible fold lines and minor edge wear; colors remain reasonably strong; no major tears evident", "estimated_value_low": 15, "estimated_value_high": 40, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.9, "series_year": 0.9, "issue_year": 0.9, "issuer": 0.95, "signatures": 0.6, "printer": 0.9, "material": 1.0, "dimensions_mm": 0.0, "watermark": 0.5, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.85, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.9, "condition_grade": 0.75}, "overall_confidence": 0.88, "flags": []}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.9, "series_year": 0.9, "issue_year": 0.9, "issuer": 0.95, "signatures": 0.6, "printer": 0.9, "material": 1.0, "dimensions_mm": 0.0, "watermark": 0.5, "portrait_subject": 1.0, "reverse_subject": 1.0, "pick_number": 0.85, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.9, "condition_grade": 0.75}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:12:36
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Rwanda",
    "currency": "Rwandan franc",
    "denomination": "100",
    "series_year": null,
    "series_name": "1997-2003 issue",
    "series_range": "1997-2003",
    "issue_year": "2003",
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "National Bank of Rwanda",
    "issuer_native": "Banque Nationale du Rwanda",
    "signatures": "Governor: [signature present]; 2nd Vice-Governor: [signature present]",
    "printer": null,
    "engraver": null,
    "material": "paper",
    "dimensions_mm": "150x75",
    "watermark": null,
    "security_features": "microprint,latent_image,see_through_register,intaglio",
    "color_palette": "#d4a76a,#8b7355,#e6d5b8",
    "portrait_subject": null,
    "reverse_subject": "Agricultural scene with oxen plowing",
    "themes": "agriculture,wildlife",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": "29",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",
    "front_description": "The Krasnoyarsk hydroelectric dam on the Yenisei River in Siberia, one of the largest hydroelectric power stations in Russia. This 124-meter high dam was completed in 1972 and represents Soviet-era industrial achievement. The note displays text in Russian (ДЕСЯТЬ РУБЛЕЙ, 'ten rubles') with the date 1997, though this appears to be a mismatched pair as the front shows a Russian 10-ruble note while the back shows a Rwandan 100-franc note.",
    "back_description": "Traditional Rwandan agricultural scene depicting farmers plowing fields with cattle (likely Ankole-Watusi cattle, known for their distinctive long horns), representing Rwanda's predominantly agricultural economy. The coat of arms of Rwanda appears at right, featuring a sun, sorghum, and coffee plant within circular frames. The date 01-09-2003 indicates the signature date. Text appears in French and English: 'BANQUE NATIONALE DU RWANDA / NATIONAL BANK OF RWANDA' and 'Payables à vue - Payable at sight' with denomination 'CENT FRANCS ONE HUNDRED FRANCS'.",
    "historical_notes": "This is part of the 1997-2003 series of Rwandan francs issued by the National Bank of Rwanda following the post-genocide reconstruction period. The franc has been Rwanda's currency since 1964, replacing the Rwanda and Burundi franc after the dissolution of the currency union. The 100-franc denomination was a mid-range note in circulation during this period. The agricultural imagery reflects Rwanda's economy, which remains heavily dependent on subsistence agriculture. The signatures correspond to bank officials serving in 2003. NOTE: The front image appears to show a Russian 10-ruble note from 1997 featuring the Krasnoyarsk dam, which does NOT match this Rwandan 100-franc note shown on the back. This represents a mismatched pair.",
    "language_script": "Latin",
    "languages": "en,fr",
    "serial_number": "AM7169414",
    "serial_prefix": "AM",
    "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": 0.85,
      "series_year": 0.0,
      "issue_year": 0.95,
      "issuer": 1.0,
      "signatures": 0.7,
      "printer": 0.0,
      "material": 0.95,
      "dimensions_mm": 0.8,
      "watermark": 0.0,
      "portrait_subject": 1.0,
      "reverse_subject": 0.9,
      "pick_number": 0.9,
      "serial_number": 1.0,
      "front_description": 0.5,
      "back_description": 0.95,
      "historical_notes": 0.85,
      "condition_grade": 0.9
    },
    "overall_confidence": 0.6,
    "flags": [
      "mismatched_pair"
    ]
  }
  ```

parsed_json:
  {"country": "Rwanda", "currency": "Rwandan franc", "denomination": "100", "series_year": null, "series_name": "1997-2003 issue", "series_range": "1997-2003", "issue_year": "2003", "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "National Bank of Rwanda", "issuer_native": "Banque Nationale du Rwanda", "signatures": "Governor: [signature present]; 2nd Vice-Governor: [signature present]", "printer": null, "engraver": null, "material": "paper", "dimensions_mm": "150x75", "watermark": null, "security_features": "microprint,latent_image,see_through_register,intaglio", "color_palette": "#d4a76a,#8b7355,#e6d5b8", "portrait_subject": null, "reverse_subject": "Agricultural scene with oxen plowing", "themes": "agriculture,wildlife", "commemorative": false, "commemorative_occasion": null, "pick_number": "29", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The Krasnoyarsk hydroelectric dam on the Yenisei River in Siberia, one of the largest hydroelectric power stations in Russia. This 124-meter high dam was completed in 1972 and represents Soviet-era industrial achievement. The note displays text in Russian (\u0414\u0415\u0421\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419, 'ten rubles') with the date 1997, though this appears to be a mismatched pair as the front shows a Russian 10-ruble note while the back shows a Rwandan 100-franc note.", "back_description": "Traditional Rwandan agricultural scene depicting farmers plowing fields with cattle (likely Ankole-Watusi cattle, known for their distinctive long horns), representing Rwanda's predominantly agricultural economy. The coat of arms of Rwanda appears at right, featuring a sun, sorghum, and coffee plant within circular frames. The date 01-09-2003 indicates the signature date. Text appears in French and English: 'BANQUE NATIONALE DU RWANDA / NATIONAL BANK OF RWANDA' and 'Payables \u00e0 vue - Payable at sight' with denomination 'CENT FRANCS ONE HUNDRED FRANCS'.", "historical_notes": "This is part of the 1997-2003 series of Rwandan francs issued by the National Bank of Rwanda following the post-genocide reconstruction period. The franc has been Rwanda's currency since 1964, replacing the Rwanda and Burundi franc after the dissolution of the currency union. The 100-franc denomination was a mid-range note in circulation during this period. The agricultural imagery reflects Rwanda's economy, which remains heavily dependent on subsistence agriculture. The signatures correspond to bank officials serving in 2003. NOTE: The front image appears to show a Russian 10-ruble note from 1997 featuring the Krasnoyarsk dam, which does NOT match this Rwandan 100-franc note shown on the back. This represents a mismatched pair.", "language_script": "Latin", "languages": "en,fr", "serial_number": "AM7169414", "serial_prefix": "AM", "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": 0.85, "series_year": 0.0, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.7, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.8, "watermark": 0.0, "portrait_subject": 1.0, "reverse_subject": 0.9, "pick_number": 0.9, "serial_number": 1.0, "front_description": 0.5, "back_description": 0.95, "historical_notes": 0.85, "condition_grade": 0.9}, "overall_confidence": 0.6, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.85, "series_year": 0.0, "issue_year": 0.95, "issuer": 1.0, "signatures": 0.7, "printer": 0.0, "material": 0.95, "dimensions_mm": 0.8, "watermark": 0.0, "portrait_subject": 1.0, "reverse_subject": 0.9, "pick_number": 0.9, "serial_number": 1.0, "front_description": 0.5, "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 07:12:36
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 Krasnoyarsk Hydroelectric Power Station on the Yenisei River in Siberia, Russia. Completed in 1972, it was one of the largest hydroelectric plants in the world at the time and represents Soviet industrial achievement. The dam is shown with its characteristic spillway and surrounding birch trees.",
    "back_description": "Agricultural scene depicting traditional farming in Rwanda with farmers plowing fields using Ankole-Watusi cattle. The image represents Rwanda's predominantly agricultural economy and traditional farming practices. The coat of arms of the Republic of Rwanda appears at right, featuring the national motto and symbols of unity and work.",
    "historical_notes": "MISMATCHED PAIR: The front image shows a Russian 10 Ruble note from the 1997 series (Bank of Russia, 'Cities of Russia' series depicting Krasnoyarsk), while the back image shows a Rwandan 100 Franc note dated 01-09-2003 from the National Bank of Rwanda. These are two completely different banknotes from different countries, currencies, and issuers. The Russian note is P-268 from the 1997 series still in circulation. The Rwandan note is P-29b from the 2003 issue.",

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

    "serial_number": "AM7169414",
    "serial_prefix": "AM",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "UNC",
    "condition_notes": "Both notes appear to be in uncirculated condition with sharp corners and no visible wear, but they are mismatched - not front and back of the same note.",

    "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": 0.95,
      "front_description": 0.92,
      "back_description": 0.92,
      "historical_notes": 0.95,
      "condition_grade": 0.85
    },
    "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 Krasnoyarsk Hydroelectric Power Station on the Yenisei River in Siberia, Russia. Completed in 1972, it was one of the largest hydroelectric plants in the world at the time and represents Soviet industrial achievement. The dam is shown with its characteristic spillway and surrounding birch trees.", "back_description": "Agricultural scene depicting traditional farming in Rwanda with farmers plowing fields using Ankole-Watusi cattle. The image represents Rwanda's predominantly agricultural economy and traditional farming practices. The coat of arms of the Republic of Rwanda appears at right, featuring the national motto and symbols of unity and work.", "historical_notes": "MISMATCHED PAIR: The front image shows a Russian 10 Ruble note from the 1997 series (Bank of Russia, 'Cities of Russia' series depicting Krasnoyarsk), while the back image shows a Rwandan 100 Franc note dated 01-09-2003 from the National Bank of Rwanda. These are two completely different banknotes from different countries, currencies, and issuers. The Russian note is P-268 from the 1997 series still in circulation. The Rwandan note is P-29b from the 2003 issue.", "language_script": null, "languages": null, "serial_number": "AM7169414", "serial_prefix": "AM", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Both notes appear to be in uncirculated condition with sharp corners and no visible wear, but they are mismatched - not front and back of the same note.", "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": 0.95, "front_description": 0.92, "back_description": 0.92, "historical_notes": 0.95, "condition_grade": 0.85}, "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": 0.95, "front_description": 0.92, "back_description": 0.92, "historical_notes": 0.95, "condition_grade": 0.85}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:12:43
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Russia",
    "currency": "RUB",
    "denomination": "5",
    "series_year": null,
    "series_name": "1997 modification",
    "series_range": "1997–present",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "in_circulation",
    "legal_status_date": null,
    "predecessor_currency": "Soviet Ruble",
    "successor_currency": null,

    "issuer": "Bank of Russia",
    "issuer_native": "Банк России",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "137x61",
    "watermark": null,
    "security_features": "microprint,intaglio,thread,optically_variable_ink",
    "color_palette": "#8b9c87,#d4c5a0,#5a7565",

    "portrait_subject": "Catherine II of Russia",
    "reverse_subject": "Monument to the Millennium of Russia in Novgorod",
    "themes": "monarch,architecture,commemorative",
    "commemorative": false,
    "commemorative_occasion": null,

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

    "front_description": "Catherine II of Russia (Catherine the Great, 1729–1796), Empress of Russia from 1762 to 1796. She presided over the Russian Enlightenment, expanded the empire's borders through military victories and diplomatic skill, and is considered one of Russia's greatest rulers. The ornate design includes allegorical figures representing abundance and prosperity, reflecting the elaborate Imperial Russian aesthetic with baroque ornamentation, scrollwork, and the denomination '100 РУБЛЕЙ' (100 Rubles) in pre-revolutionary styling. This front design reproduces the Imperial 100-ruble note issued under Catherine II's reign.",
    "back_description": "The Monument to the Millennium of Russia (Тысячелетие России) in Veliky Novgorod, unveiled in 1862 to commemorate the 1000th anniversary of Rurik's arrival in 862 CE, traditionally marking the founding of the Russian state. The monument, designed by Mikhail Mikeshin, stands in the Novgorod Kremlin and depicts key figures from Russian history. Behind it is Saint Sophia Cathedral with its distinctive green and silver onion domes, one of Russia's oldest stone structures, built in 1045–1050. The text reads 'БИЛЕТ БАНКА РОССИИ' (Bank of Russia Note) and 'ПЯТЬ РУБЛЕЙ' (Five Rubles).",
    "historical_notes": "This note represents a hybrid design combining historical Imperial Russian imagery with modern Russian Federation currency. The front reproduces the elaborate Catherine II-era 100 ruble note design from the late 18th century, while the back features the modern 5 ruble denomination with 20th-century imagery. The 1997 Russian ruble reform (denomination 1000:1) introduced the current ruble series; 5-ruble notes from this series have been issued in multiple modifications (1997, 2001, 2010 onwards) with various security feature upgrades. The serial number prefix 'ЬЯ' (bYA) is a standard Bank of Russia series identifier. The juxtaposition of Imperial Catherine II imagery with Soviet/post-Soviet Novgorod monuments creates an unusual numismatic artifact bridging multiple eras of Russian history.",
    "language_script": "Cyrillic",
    "languages": "ru",

    "serial_number": "ЬЯ 5508754",
    "serial_prefix": "ЬЯ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note shows signs of circulation with light soiling and edge wear; overall integrity good",

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

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 1.0,
      "series_name": 0.75,
      "series_year": 0.6,
      "issue_year": 0.5,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.85,
      "material": 0.95,
      "dimensions_mm": 0.9,
      "watermark": 0.3,
      "portrait_subject": 0.95,
      "reverse_subject": 0.95,
      "pick_number": 0.0,
      "serial_number": 1.0,
      "front_description": 0.85,
      "back_description": 0.95,
      "historical_notes": 0.8,
      "condition_grade": 0.75
    },
    "overall_confidence": 0.82,
    "flags": ["mismatched_pair", "unidentified_subject"]
  }
  ```

parsed_json:
  {"country": "Russia", "currency": "RUB", "denomination": "5", "series_year": null, "series_name": "1997 modification", "series_range": "1997\u2013present", "issue_year": null, "era": "1990_present", "legal_status": "in_circulation", "legal_status_date": null, "predecessor_currency": "Soviet Ruble", "successor_currency": null, "issuer": "Bank of Russia", "issuer_native": "\u0411\u0430\u043d\u043a \u0420\u043e\u0441\u0441\u0438\u0438", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "137x61", "watermark": null, "security_features": "microprint,intaglio,thread,optically_variable_ink", "color_palette": "#8b9c87,#d4c5a0,#5a7565", "portrait_subject": "Catherine II of Russia", "reverse_subject": "Monument to the Millennium of Russia in Novgorod", "themes": "monarch,architecture,commemorative", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "Catherine II of Russia (Catherine the Great, 1729\u20131796), Empress of Russia from 1762 to 1796. She presided over the Russian Enlightenment, expanded the empire's borders through military victories and diplomatic skill, and is considered one of Russia's greatest rulers. The ornate design includes allegorical figures representing abundance and prosperity, reflecting the elaborate Imperial Russian aesthetic with baroque ornamentation, scrollwork, and the denomination '100 \u0420\u0423\u0411\u041b\u0415\u0419' (100 Rubles) in pre-revolutionary styling. This front design reproduces the Imperial 100-ruble note issued under Catherine II's reign.", "back_description": "The Monument to the Millennium of Russia (\u0422\u044b\u0441\u044f\u0447\u0435\u043b\u0435\u0442\u0438\u0435 \u0420\u043e\u0441\u0441\u0438\u0438) in Veliky Novgorod, unveiled in 1862 to commemorate the 1000th anniversary of Rurik's arrival in 862 CE, traditionally marking the founding of the Russian state. The monument, designed by Mikhail Mikeshin, stands in the Novgorod Kremlin and depicts key figures from Russian history. Behind it is Saint Sophia Cathedral with its distinctive green and silver onion domes, one of Russia's oldest stone structures, built in 1045\u20131050. The text reads '\u0411\u0418\u041b\u0415\u0422 \u0411\u0410\u041d\u041a\u0410 \u0420\u041e\u0421\u0421\u0418\u0418' (Bank of Russia Note) and '\u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Five Rubles).", "historical_notes": "This note represents a hybrid design combining historical Imperial Russian imagery with modern Russian Federation currency. The front reproduces the elaborate Catherine II-era 100 ruble note design from the late 18th century, while the back features the modern 5 ruble denomination with 20th-century imagery. The 1997 Russian ruble reform (denomination 1000:1) introduced the current ruble series; 5-ruble notes from this series have been issued in multiple modifications (1997, 2001, 2010 onwards) with various security feature upgrades. The serial number prefix '\u042c\u042f' (bYA) is a standard Bank of Russia series identifier. The juxtaposition of Imperial Catherine II imagery with Soviet/post-Soviet Novgorod monuments creates an unusual numismatic artifact bridging multiple eras of Russian history.", "language_script": "Cyrillic", "languages": "ru", "serial_number": "\u042c\u042f 5508754", "serial_prefix": "\u042c\u042f", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows signs of circulation with light soiling and edge wear; overall integrity good", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.75, "series_year": 0.6, "issue_year": 0.5, "issuer": 1.0, "signatures": 0.0, "printer": 0.85, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.3, "portrait_subject": 0.95, "reverse_subject": 0.95, "pick_number": 0.0, "serial_number": 1.0, "front_description": 0.85, "back_description": 0.95, "historical_notes": 0.8, "condition_grade": 0.75}, "overall_confidence": 0.82, "flags": ["mismatched_pair", "unidentified_subject"]}

field_confidence:
  {"country": 1.0, "currency": 1.0, "denomination": 1.0, "series_name": 0.75, "series_year": 0.6, "issue_year": 0.5, "issuer": 1.0, "signatures": 0.0, "printer": 0.85, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.3, "portrait_subject": 0.95, "reverse_subject": 0.95, "pick_number": 0.0, "serial_number": 1.0, "front_description": 0.85, "back_description": 0.95, "historical_notes": 0.8, "condition_grade": 0.75}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:12:43
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": null,
    "denomination": null,
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": null,
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,

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

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

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

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

    "front_description": "Catherine II (Catherine the Great, 1729–1796), Empress of Russia from 1762 to 1796, shown in an oval portrait based on period paintings. She was one of Russia's most powerful rulers, overseeing the expansion of the Russian Empire, the modernization of its administration, and the flourishing of arts and culture. To the left stands a classical male figure representing commerce or industry, holding a laurel wreath, with ornate Baroque framing including the Imperial Russian crown above the portrait and a Medusa head below.",

    "back_description": "The Millennium of Russia Monument in Veliky Novgorod, erected in 1862 to commemorate the 1,000th anniversary of the legendary arrival of Rurik, founder of Russian statehood. The bronze monument, designed by Mikhail Mikeshin, features over 100 figures from Russian history. Behind stands the Saint Sophia Cathedral (built 1045–1050), the oldest stone building in Russia and the spiritual center of Novgorod.",

    "historical_notes": "These two images are from DIFFERENT banknotes and do not constitute a matched front/back pair. The FRONT image is from a Russian Imperial 100 Ruble note (State Credit Note) issued circa 1910–1912 during the reign of Nicholas II, featuring Catherine the Great. This design was printed by the Expedition for the Preparation of State Papers (Goznak's predecessor). The BACK image is from a Bank of Russia 5 Ruble note from the 1997 series (first issued 1998), depicting Novgorod landmarks. These notes are separated by approximately 85 years and represent entirely different monetary systems—Imperial Russia versus the post-Soviet Russian Federation.",

    "language_script": "Cyrillic",
    "languages": "ru",

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

    "condition_grade": "unknown",
    "condition_notes": "Images are from two completely different banknotes; cannot assess as a single item",

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

    "field_confidence": {
      "country": 0.95,
      "currency": 0.3,
      "denomination": 0.3,
      "series_name": 0.3,
      "series_year": 0.3,
      "issue_year": 0.3,
      "issuer": 0.3,
      "signatures": 0.0,
      "printer": 0.6,
      "material": 0.7,
      "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": 0.9,
      "back_description": 0.92,
      "historical_notes": 0.9,
      "condition_grade": 0.0
    },
    "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": 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": "Catherine II (Catherine the Great, 1729\u20131796), Empress of Russia from 1762 to 1796, shown in an oval portrait based on period paintings. She was one of Russia's most powerful rulers, overseeing the expansion of the Russian Empire, the modernization of its administration, and the flourishing of arts and culture. To the left stands a classical male figure representing commerce or industry, holding a laurel wreath, with ornate Baroque framing including the Imperial Russian crown above the portrait and a Medusa head below.", "back_description": "The Millennium of Russia Monument in Veliky Novgorod, erected in 1862 to commemorate the 1,000th anniversary of the legendary arrival of Rurik, founder of Russian statehood. The bronze monument, designed by Mikhail Mikeshin, features over 100 figures from Russian history. Behind stands the Saint Sophia Cathedral (built 1045\u20131050), the oldest stone building in Russia and the spiritual center of Novgorod.", "historical_notes": "These two images are from DIFFERENT banknotes and do not constitute a matched front/back pair. The FRONT image is from a Russian Imperial 100 Ruble note (State Credit Note) issued circa 1910\u20131912 during the reign of Nicholas II, featuring Catherine the Great. This design was printed by the Expedition for the Preparation of State Papers (Goznak's predecessor). The BACK image is from a Bank of Russia 5 Ruble note from the 1997 series (first issued 1998), depicting Novgorod landmarks. These notes are separated by approximately 85 years and represent entirely different monetary systems\u2014Imperial Russia versus the post-Soviet Russian Federation.", "language_script": "Cyrillic", "languages": "ru", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "unknown", "condition_notes": "Images are from two completely different banknotes; cannot assess as a single item", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.95, "currency": 0.3, "denomination": 0.3, "series_name": 0.3, "series_year": 0.3, "issue_year": 0.3, "issuer": 0.3, "signatures": 0.0, "printer": 0.6, "material": 0.7, "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": 0.9, "back_description": 0.92, "historical_notes": 0.9, "condition_grade": 0.0}, "overall_confidence": 0.25, "flags": ["mismatched_pair"]}

field_confidence:
  {"country": 0.95, "currency": 0.3, "denomination": 0.3, "series_name": 0.3, "series_year": 0.3, "issue_year": 0.3, "issuer": 0.3, "signatures": 0.0, "printer": 0.6, "material": 0.7, "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": 0.9, "back_description": 0.92, "historical_notes": 0.9, "condition_grade": 0.0}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:12:44
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Rwanda",
    "currency": "Rwandan Franc",
    "denomination": "100",
    "series_year": null,
    "series_name": null,
    "series_range": null,
    "issue_year": null,
    "era": "1990_present",
    "legal_status": "withdrawn",
    "legal_status_date": null,
    "predecessor_currency": null,
    "successor_currency": null,
    "issuer": "National Bank of Rwanda",
    "issuer_native": "Banki Nasiyonali y'u Rwanda",
    "signatures": null,
    "printer": null,
    "engraver": null,
    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": "microprint,intaglio,latent_image",
    "color_palette": "#e8d9b5,#7b9cb0,#c4a876",
    "portrait_subject": null,
    "reverse_subject": "King Faisal of Saudi Arabia",
    "themes": "monarch,indigenous_culture,agriculture",
    "commemorative": false,
    "commemorative_occasion": null,
    "pick_number": null,
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": null,
    "front_description": "Lake Kivu, one of the African Great Lakes located on the border between Rwanda and the Democratic Republic of Congo. The lake sits in the Albertine Rift, the western branch of the East African Rift, and is known for its scenic beauty surrounded by mountains. Traditional Rwandan basket (agaseke) appears at right, a significant cultural artifact symbolizing peace, unity and prosperity in Rwandan tradition. The text reads 'BANKI NASIYONALI Y'U RWANDA' (National Bank of Rwanda) in Kinyarwanda, with the secondary inscription 'ITEGEKO LIHANA UMUNTU WESE UZIGANA IYI NOTI' warning against counterfeiting.",
    "back_description": "King Faisal bin Abdulaziz Al Saud (1906–1975), third King of Saudi Arabia who reigned from 1964 until his assassination in 1975. However, this attribution is anomalous—the portrait appears on what is clearly a Rwandan banknote (front inscription in Kinyarwanda, issuer is National Bank of Rwanda). The presence of Arabic script and Saudi imagery on a Rwandan note suggests either a mismatched pair of images, an error note, a fantasy/specimen piece, or unusual commemorative issue. The state emblem of Saudi Arabia appears at left with Arabic inscriptions.",
    "historical_notes": "This note presents a significant cataloguing challenge. The front is unmistakably Rwandan: it bears the National Bank of Rwanda's name in Kinyarwanda, depicts Lake Kivu (a major Rwandan landmark), and shows a traditional Rwandan agaseke basket. The denomination is given as '100 AMAFARANGA' (100 francs in Kinyarwanda). However, the reverse depicts King Faisal of Saudi Arabia with Arabic script and Saudi state emblems—elements that have no documented place in Rwandan currency design. Standard Rwandan 100 franc notes from various series feature Rwandan cultural imagery, wildlife, or infrastructure on both sides. Without being able to match this to any documented Rwandan series or Pick number, and given the incongruous pairing of Rwandan and Saudi imagery, this may represent: (1) a mismatched pair where images from two different notes were incorrectly paired; (2) an error or trial printing; (3) a modern fantasy/souvenir note; or (4) an undocumented commemorative issue. The overall design quality and security features appear consistent with legitimate currency production. Further authentication would require examination of the physical note and cross-reference with National Bank of Rwanda records.",
    "language_script": "Latin, Arabic",
    "languages": "rw,ar",
    "serial_number": null,
    "serial_prefix": null,
    "serial_suffix": null,
    "replacement_note": null,
    "replacement_indicator": null,
    "condition_grade": "UNC",
    "condition_notes": "Appears uncirculated with sharp details and no visible wear",
    "estimated_value_low": null,
    "estimated_value_high": null,
    "value_currency": null,
    "field_confidence": {
      "country": 0.95,
      "currency": 0.95,
      "denomination": 0.98,
      "series_name": 0.0,
      "series_year": 0.0,
      "issue_year": 0.0,
      "issuer": 0.98,
      "signatures": 0.0,
      "printer": 0.0,
      "material": 0.85,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.70,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.88,
      "back_description": 0.75,
      "historical_notes": 0.80,
      "condition_grade": 0.85
    },
    "overall_confidence": 0.55,
    "flags": [
      "mismatched_pair",
      "unidentified_subject"
    ]
  }
  ```

parsed_json:
  {"country": "Rwanda", "currency": "Rwandan Franc", "denomination": "100", "series_year": null, "series_name": null, "series_range": null, "issue_year": null, "era": "1990_present", "legal_status": "withdrawn", "legal_status_date": null, "predecessor_currency": null, "successor_currency": null, "issuer": "National Bank of Rwanda", "issuer_native": "Banki Nasiyonali y'u Rwanda", "signatures": null, "printer": null, "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": "microprint,intaglio,latent_image", "color_palette": "#e8d9b5,#7b9cb0,#c4a876", "portrait_subject": null, "reverse_subject": "King Faisal of Saudi Arabia", "themes": "monarch,indigenous_culture,agriculture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "Lake Kivu, one of the African Great Lakes located on the border between Rwanda and the Democratic Republic of Congo. The lake sits in the Albertine Rift, the western branch of the East African Rift, and is known for its scenic beauty surrounded by mountains. Traditional Rwandan basket (agaseke) appears at right, a significant cultural artifact symbolizing peace, unity and prosperity in Rwandan tradition. The text reads 'BANKI NASIYONALI Y'U RWANDA' (National Bank of Rwanda) in Kinyarwanda, with the secondary inscription 'ITEGEKO LIHANA UMUNTU WESE UZIGANA IYI NOTI' warning against counterfeiting.", "back_description": "King Faisal bin Abdulaziz Al Saud (1906\u20131975), third King of Saudi Arabia who reigned from 1964 until his assassination in 1975. However, this attribution is anomalous\u2014the portrait appears on what is clearly a Rwandan banknote (front inscription in Kinyarwanda, issuer is National Bank of Rwanda). The presence of Arabic script and Saudi imagery on a Rwandan note suggests either a mismatched pair of images, an error note, a fantasy/specimen piece, or unusual commemorative issue. The state emblem of Saudi Arabia appears at left with Arabic inscriptions.", "historical_notes": "This note presents a significant cataloguing challenge. The front is unmistakably Rwandan: it bears the National Bank of Rwanda's name in Kinyarwanda, depicts Lake Kivu (a major Rwandan landmark), and shows a traditional Rwandan agaseke basket. The denomination is given as '100 AMAFARANGA' (100 francs in Kinyarwanda). However, the reverse depicts King Faisal of Saudi Arabia with Arabic script and Saudi state emblems\u2014elements that have no documented place in Rwandan currency design. Standard Rwandan 100 franc notes from various series feature Rwandan cultural imagery, wildlife, or infrastructure on both sides. Without being able to match this to any documented Rwandan series or Pick number, and given the incongruous pairing of Rwandan and Saudi imagery, this may represent: (1) a mismatched pair where images from two different notes were incorrectly paired; (2) an error or trial printing; (3) a modern fantasy/souvenir note; or (4) an undocumented commemorative issue. The overall design quality and security features appear consistent with legitimate currency production. Further authentication would require examination of the physical note and cross-reference with National Bank of Rwanda records.", "language_script": "Latin, Arabic", "languages": "rw,ar", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Appears uncirculated with sharp details and no visible wear", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.95, "currency": 0.95, "denomination": 0.98, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.98, "signatures": 0.0, "printer": 0.0, "material": 0.85, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.7, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.88, "back_description": 0.75, "historical_notes": 0.8, "condition_grade": 0.85}, "overall_confidence": 0.55, "flags": ["mismatched_pair", "unidentified_subject"]}

field_confidence:
  {"country": 0.95, "currency": 0.95, "denomination": 0.98, "series_name": 0.0, "series_year": 0.0, "issue_year": 0.0, "issuer": 0.98, "signatures": 0.0, "printer": 0.0, "material": 0.85, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.7, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.88, "back_description": 0.75, "historical_notes": 0.8, "condition_grade": 0.85}


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:12:44
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": "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,intaglio",
    "color_palette": "#c4a86c,#6b8e9f,#d4c4a8",

    "portrait_subject": "King Fahd bin Abdulaziz Al Saud",
    "reverse_subject": "Lake Kivu and surrounding hills of Rwanda",
    "themes": "monarch,architecture,indigenous_culture",
    "commemorative": false,
    "commemorative_occasion": null,

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

    "front_description": "Lake Kivu, one of the African Great Lakes located on the border between Rwanda and the Democratic Republic of the Congo. The scene shows the lake surrounded by the characteristic hills of Rwanda, with tropical vegetation including banana plants in the foreground. This landscape represents Rwanda's natural beauty and its identity as 'the land of a thousand hills.'",
    "back_description": "King Fahd bin Abdulaziz Al Saud (1921-2005), the fifth King of Saudi Arabia who reigned from 1982 until his death in 2005. He oversaw significant modernization of Saudi Arabia and adopted the title 'Custodian of the Two Holy Mosques.' The note also features an ancient Islamic gold dinar coin and geometric Islamic patterns.",
    "historical_notes": "MISMATCHED PAIR: The front image shows a Rwanda 100 Francs note issued by Banki Nasiyonali y'u Rwanda (National Bank of Rwanda), featuring Lake Kivu. The back image shows a Saudi Arabia 1 Riyal note issued by the Saudi Arabian Monetary Agency, featuring King Fahd. These are clearly two different banknotes from different countries that have been incorrectly paired. The Rwanda note appears to be from the 2003 series (P-29), while the Saudi note appears to be from the 1984 series (P-21). The serial number visible on the Saudi note is 1076/015315.",
    "language_script": "Latin,Arabic",
    "languages": "rw,fr,ar",

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

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

    "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": 0.85,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.92,
      "reverse_subject": 0.88,
      "pick_number": 0.0,
      "serial_number": 0.0,
      "front_description": 0.85,
      "back_description": 0.88,
      "historical_notes": 0.95,
      "condition_grade": 0.80
    },
    "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": "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,intaglio", "color_palette": "#c4a86c,#6b8e9f,#d4c4a8", "portrait_subject": "King Fahd bin Abdulaziz Al Saud", "reverse_subject": "Lake Kivu and surrounding hills of Rwanda", "themes": "monarch,architecture,indigenous_culture", "commemorative": false, "commemorative_occasion": null, "pick_number": null, "krause_id": null, "wpm_id": null, "rarity_tier": null, "front_description": "Lake Kivu, one of the African Great Lakes located on the border between Rwanda and the Democratic Republic of the Congo. The scene shows the lake surrounded by the characteristic hills of Rwanda, with tropical vegetation including banana plants in the foreground. This landscape represents Rwanda's natural beauty and its identity as 'the land of a thousand hills.'", "back_description": "King Fahd bin Abdulaziz Al Saud (1921-2005), the fifth King of Saudi Arabia who reigned from 1982 until his death in 2005. He oversaw significant modernization of Saudi Arabia and adopted the title 'Custodian of the Two Holy Mosques.' The note also features an ancient Islamic gold dinar coin and geometric Islamic patterns.", "historical_notes": "MISMATCHED PAIR: The front image shows a Rwanda 100 Francs note issued by Banki Nasiyonali y'u Rwanda (National Bank of Rwanda), featuring Lake Kivu. The back image shows a Saudi Arabia 1 Riyal note issued by the Saudi Arabian Monetary Agency, featuring King Fahd. These are clearly two different banknotes from different countries that have been incorrectly paired. The Rwanda note appears to be from the 2003 series (P-29), while the Saudi note appears to be from the 1984 series (P-21). The serial number visible on the Saudi note is 1076/015315.", "language_script": "Latin,Arabic", "languages": "rw,fr,ar", "serial_number": null, "serial_prefix": null, "serial_suffix": null, "replacement_note": null, "replacement_indicator": null, "condition_grade": "UNC", "condition_notes": "Both notes appear to be in uncirculated condition with crisp paper and sharp corners", "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": 0.85, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.92, "reverse_subject": 0.88, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.85, "back_description": 0.88, "historical_notes": 0.95, "condition_grade": 0.8}, "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": 0.85, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.92, "reverse_subject": 0.88, "pick_number": 0.0, "serial_number": 0.0, "front_description": 0.85, "back_description": 0.88, "historical_notes": 0.95, "condition_grade": 0.8}


provider: anthropic
model: claude-sonnet-4-5
status: ok
created_at: 2026-05-10 07:12:46
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": "Russia",
    "currency": "RUB",
    "denomination": "5 Rubles",
    "series_year": "1997",
    "series_name": "1997 Redenomination Series",
    "series_range": "1997–present",
    "issue_year": "1997",
    "era": "1990_present",
    "legal_status": "in_circulation",
    "legal_status_date": "1998-01-01",
    "predecessor_currency": "Russian Ruble (pre-1998 redenomination)",
    "successor_currency": null,

    "issuer": "Bank of Russia",
    "issuer_native": "БАНК РОССИИ",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": "137x61",
    "watermark": "Numeral 5 watermark in clear field",
    "security_features": "thread, microprint, intaglio, latent_image",
    "color_palette": "#8b9d7c,#d4c5a8,#e8d8c3",

    "portrait_subject": null,
    "reverse_subject": "Krasnoyarsk: Communal Bridge and Paraskeva Pyatnitsa Chapel",
    "themes": "architecture,transport",
    "commemorative": false,
    "commemorative_occasion": null,

    "pick_number": "P-267",
    "krause_id": null,
    "wpm_id": null,
    "rarity_tier": "common",

    "front_description": "The Novgorod Kremlin tower, specifically the central watchtower from the ancient fortress walls of Veliky Novgorod, one of Russia's oldest cities and a UNESCO World Heritage Site. The Kremlin (Detinets) dates to the 11th–15th centuries and was a key fortification of medieval Rus'. The note displays the denomination '5' in multiple locations with the text 'ПЯТЬ РУБЛЕЙ' (Five Rubles) and 'Новгород' (Novgorod) beneath the tower image. The year '1997' is printed in the lower right.",

    "back_description": "Krasnoyarsk cityscape featuring two landmarks: the arched Communal Bridge (Kommunalny Bridge) over the Yenisei River, built 1955–1961, and the prominent Paraskeva Pyatnitsa Chapel, a red-brick Orthodox chapel built in 1852–1855 atop Karaulnaya Hill, which has become the symbol of Krasnoyarsk. The bridge appears in the left vignette showing its characteristic arched structure spanning the river, while the octagonal chapel tower dominates the right side. The denomination '10' appears on the back (mismatched from the front's '5'), with text reading 'ДЕСЯТЬ РУБЛЕЙ' (Ten Rubles) and 'БИЛЕТ БАНКА РОССИИ' (Bank of Russia Note).",

    "historical_notes": "This note is part of the 1997 redenomination series that came into circulation on January 1, 1998, when Russia redenominated its currency at a rate of 1,000 old rubles to 1 new ruble to combat hyperinflation of the 1990s. The 1997-dated series (issued 1998) featured Russian cities and monuments. The front depicts Veliky Novgorod, one of Russia's most historic cities. CRITICAL MISMATCH: The front shows 5 Rubles while the back shows 10 Rubles, indicating these are images from two different notes incorrectly paired. The serial number 'бТ 4900082' visible on the back belongs to the 10 Ruble note. The 5 Ruble denomination in this series typically features the Novgorod Kremlin on the front and the Monument to the Millennium of Russia on the back, while the 10 Ruble note features the Krasnoyarsk landmarks shown here. This is a mismatched pair of front and back images from different denominations of the same series.",

    "language_script": "Cyrillic",
    "languages": "ru",

    "serial_number": "бТ4900082",
    "serial_prefix": "бТ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "VF",
    "condition_notes": "Note shows signs of circulation with minor wear and handling marks visible on both sides",

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

    "field_confidence": {
      "country": 1.0,
      "currency": 1.0,
      "denomination": 0.95,
      "series_name": 0.95,
      "series_year": 1.0,
      "issue_year": 1.0,
      "issuer": 1.0,
      "signatures": 0.0,
      "printer": 0.9,
      "material": 0.95,
      "dimensions_mm": 0.9,
      "watermark": 0.85,
      "portrait_subject": 1.0,
      "reverse_subject": 0.95,
      "pick_number": 0.75,
      "serial_number": 0.95,
      "front_description": 0.9,
      "back_description": 0.9,
      "historical_notes": 0.95,
      "condition_grade": 0.8
    },
    "overall_confidence": 0.6,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": "Russia", "currency": "RUB", "denomination": "5 Rubles", "series_year": "1997", "series_name": "1997 Redenomination Series", "series_range": "1997\u2013present", "issue_year": "1997", "era": "1990_present", "legal_status": "in_circulation", "legal_status_date": "1998-01-01", "predecessor_currency": "Russian Ruble (pre-1998 redenomination)", "successor_currency": null, "issuer": "Bank of Russia", "issuer_native": "\u0411\u0410\u041d\u041a \u0420\u041e\u0421\u0421\u0418\u0418", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": "137x61", "watermark": "Numeral 5 watermark in clear field", "security_features": "thread, microprint, intaglio, latent_image", "color_palette": "#8b9d7c,#d4c5a8,#e8d8c3", "portrait_subject": null, "reverse_subject": "Krasnoyarsk: Communal Bridge and Paraskeva Pyatnitsa Chapel", "themes": "architecture,transport", "commemorative": false, "commemorative_occasion": null, "pick_number": "P-267", "krause_id": null, "wpm_id": null, "rarity_tier": "common", "front_description": "The Novgorod Kremlin tower, specifically the central watchtower from the ancient fortress walls of Veliky Novgorod, one of Russia's oldest cities and a UNESCO World Heritage Site. The Kremlin (Detinets) dates to the 11th\u201315th centuries and was a key fortification of medieval Rus'. The note displays the denomination '5' in multiple locations with the text '\u041f\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Five Rubles) and '\u041d\u043e\u0432\u0433\u043e\u0440\u043e\u0434' (Novgorod) beneath the tower image. The year '1997' is printed in the lower right.", "back_description": "Krasnoyarsk cityscape featuring two landmarks: the arched Communal Bridge (Kommunalny Bridge) over the Yenisei River, built 1955\u20131961, and the prominent Paraskeva Pyatnitsa Chapel, a red-brick Orthodox chapel built in 1852\u20131855 atop Karaulnaya Hill, which has become the symbol of Krasnoyarsk. The bridge appears in the left vignette showing its characteristic arched structure spanning the river, while the octagonal chapel tower dominates the right side. The denomination '10' appears on the back (mismatched from the front's '5'), with text reading '\u0414\u0415\u0421\u042f\u0422\u042c \u0420\u0423\u0411\u041b\u0415\u0419' (Ten Rubles) and '\u0411\u0418\u041b\u0415\u0422 \u0411\u0410\u041d\u041a\u0410 \u0420\u041e\u0421\u0421\u0418\u0418' (Bank of Russia Note).", "historical_notes": "This note is part of the 1997 redenomination series that came into circulation on January 1, 1998, when Russia redenominated its currency at a rate of 1,000 old rubles to 1 new ruble to combat hyperinflation of the 1990s. The 1997-dated series (issued 1998) featured Russian cities and monuments. The front depicts Veliky Novgorod, one of Russia's most historic cities. CRITICAL MISMATCH: The front shows 5 Rubles while the back shows 10 Rubles, indicating these are images from two different notes incorrectly paired. The serial number '\u0431\u0422 4900082' visible on the back belongs to the 10 Ruble note. The 5 Ruble denomination in this series typically features the Novgorod Kremlin on the front and the Monument to the Millennium of Russia on the back, while the 10 Ruble note features the Krasnoyarsk landmarks shown here. This is a mismatched pair of front and back images from different denominations of the same series.", "language_script": "Cyrillic", "languages": "ru", "serial_number": "\u0431\u04224900082", "serial_prefix": "\u0431\u0422", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "VF", "condition_notes": "Note shows signs of circulation with minor wear and handling marks visible on both sides", "estimated_value_low": 1, "estimated_value_high": 3, "value_currency": "USD", "field_confidence": {"country": 1.0, "currency": 1.0, "denomination": 0.95, "series_name": 0.95, "series_year": 1.0, "issue_year": 1.0, "issuer": 1.0, "signatures": 0.0, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.9, "watermark": 0.85, "portrait_subject": 1.0, "reverse_subject": 0.95, "pick_number": 0.75, "serial_number": 0.95, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.95, "condition_grade": 0.8}, "overall_confidence": 0.6, "flags": ["mismatched_pair"]}

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


provider: anthropic
model: claude-opus-4-5
status: ok
created_at: 2026-05-10 07:12:46
prompt_version: v3-year-reasoning
raw_response:
  ```json
  {
    "country": null,
    "currency": "RUB",
    "denomination": null,
    "series_year": "1997",
    "series_name": "1997 Series",
    "series_range": "1997–present",
    "issue_year": null,
    "era": "1990_present",
    "legal_status": null,
    "legal_status_date": null,
    "predecessor_currency": "Soviet ruble",
    "successor_currency": null,

    "issuer": "Bank of Russia",
    "issuer_native": "Банк России",
    "signatures": null,
    "printer": "Goznak",
    "engraver": null,

    "material": "paper",
    "dimensions_mm": null,
    "watermark": null,
    "security_features": "thread,microprint,intaglio",
    "color_palette": "#5a7d4a,#d4c4a8,#3d5c8a",

    "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": "MISMATCHED PAIR - This image shows a Russian 5 ruble note from the 1997 series featuring the Novgorod Kremlin (Detinets), the historic fortress in Veliky Novgorod. The walls and towers date primarily to the 15th century, and the site is a UNESCO World Heritage location. The inscription 'Новгород' (Novgorod) confirms the depicted city. Veliky Novgorod was one of the most important medieval Russian cities and a major center of the Hanseatic trade.",

    "back_description": "MISMATCHED PAIR - This image shows a Russian 10 ruble note from the 1997 series featuring landmarks of Krasnoyarsk, Siberia. The prominent bridge is the Kommunalny Bridge (Communal Bridge) spanning the Yenisei River, completed in 1961 and once the longest bridge in Asia. The chapel depicted is the Paraskeva Pyatnitsa Chapel, a 19th-century Orthodox chapel situated on Karaulnaya Hill, which appears on many Russian 10 ruble notes and has become an iconic symbol of Krasnoyarsk.",

    "historical_notes": "WARNING: These images represent TWO DIFFERENT BANKNOTES - a 5 ruble and a 10 ruble from Russia's 1997 series. The front image is a 5 ruble note (P-267) showing Novgorod, while the back image is actually the FRONT of a 10 ruble note (P-268) showing Krasnoyarsk. Both belong to the Bank of Russia 1997 series, introduced after the 1998 redenomination when 1000 old rubles became 1 new ruble. The series was designed to showcase historic Russian cities rather than political figures. These notes were printed by Goznak, the Russian state mint and printing works.",

    "language_script": "Cyrillic",
    "languages": "ru",

    "serial_number": "ьТ 4900082",
    "serial_prefix": "ьТ",
    "serial_suffix": null,
    "replacement_note": false,
    "replacement_indicator": null,

    "condition_grade": "AU",
    "condition_notes": "Minor handling marks visible, overall crisp and well-preserved",

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

    "field_confidence": {
      "country": 0.95,
      "currency": 0.98,
      "denomination": 0.0,
      "series_name": 0.95,
      "series_year": 0.98,
      "issue_year": 0.5,
      "issuer": 0.98,
      "signatures": 0.0,
      "printer": 0.9,
      "material": 0.95,
      "dimensions_mm": 0.0,
      "watermark": 0.0,
      "portrait_subject": 0.0,
      "reverse_subject": 0.0,
      "pick_number": 0.0,
      "serial_number": 0.85,
      "front_description": 0.9,
      "back_description": 0.9,
      "historical_notes": 0.85,
      "condition_grade": 0.75
    },
    "overall_confidence": 0.35,
    "flags": ["mismatched_pair"]
  }
  ```

parsed_json:
  {"country": null, "currency": "RUB", "denomination": null, "series_year": "1997", "series_name": "1997 Series", "series_range": "1997\u2013present", "issue_year": null, "era": "1990_present", "legal_status": null, "legal_status_date": null, "predecessor_currency": "Soviet ruble", "successor_currency": null, "issuer": "Bank of Russia", "issuer_native": "\u0411\u0430\u043d\u043a \u0420\u043e\u0441\u0441\u0438\u0438", "signatures": null, "printer": "Goznak", "engraver": null, "material": "paper", "dimensions_mm": null, "watermark": null, "security_features": "thread,microprint,intaglio", "color_palette": "#5a7d4a,#d4c4a8,#3d5c8a", "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": "MISMATCHED PAIR - This image shows a Russian 5 ruble note from the 1997 series featuring the Novgorod Kremlin (Detinets), the historic fortress in Veliky Novgorod. The walls and towers date primarily to the 15th century, and the site is a UNESCO World Heritage location. The inscription '\u041d\u043e\u0432\u0433\u043e\u0440\u043e\u0434' (Novgorod) confirms the depicted city. Veliky Novgorod was one of the most important medieval Russian cities and a major center of the Hanseatic trade.", "back_description": "MISMATCHED PAIR - This image shows a Russian 10 ruble note from the 1997 series featuring landmarks of Krasnoyarsk, Siberia. The prominent bridge is the Kommunalny Bridge (Communal Bridge) spanning the Yenisei River, completed in 1961 and once the longest bridge in Asia. The chapel depicted is the Paraskeva Pyatnitsa Chapel, a 19th-century Orthodox chapel situated on Karaulnaya Hill, which appears on many Russian 10 ruble notes and has become an iconic symbol of Krasnoyarsk.", "historical_notes": "WARNING: These images represent TWO DIFFERENT BANKNOTES - a 5 ruble and a 10 ruble from Russia's 1997 series. The front image is a 5 ruble note (P-267) showing Novgorod, while the back image is actually the FRONT of a 10 ruble note (P-268) showing Krasnoyarsk. Both belong to the Bank of Russia 1997 series, introduced after the 1998 redenomination when 1000 old rubles became 1 new ruble. The series was designed to showcase historic Russian cities rather than political figures. These notes were printed by Goznak, the Russian state mint and printing works.", "language_script": "Cyrillic", "languages": "ru", "serial_number": "\u044c\u0422 4900082", "serial_prefix": "\u044c\u0422", "serial_suffix": null, "replacement_note": false, "replacement_indicator": null, "condition_grade": "AU", "condition_notes": "Minor handling marks visible, overall crisp and well-preserved", "estimated_value_low": null, "estimated_value_high": null, "value_currency": null, "field_confidence": {"country": 0.95, "currency": 0.98, "denomination": 0.0, "series_name": 0.95, "series_year": 0.98, "issue_year": 0.5, "issuer": 0.98, "signatures": 0.0, "printer": 0.9, "material": 0.95, "dimensions_mm": 0.0, "watermark": 0.0, "portrait_subject": 0.0, "reverse_subject": 0.0, "pick_number": 0.0, "serial_number": 0.85, "front_description": 0.9, "back_description": 0.9, "historical_notes": 0.85, "condition_grade": 0.75}, "overall_confidence": 0.35, "flags": ["mismatched_pair"]}

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


