Tenpō Ichibugin
天保一分銀（tenpō ichibugin）
- Series
- Counted silver (ichibugin)
- Denomination
- 1 bu (1/4 ryō)
- Period
- 1837 (Tenpō 8)
Updated: 2026-09-02
Specifications (as confirmed)
| Item | Value | Type | Sources |
|---|---|---|---|
| Issue & fineness (catalog) | 1837年・99% | Catalog value | [1] |
FACTIssued 1837 with 99% fineness (catalog).[1]
Historical Context
FACTAt the opening of the ports it was the counted silver coin circulating in quantity (catalog).[1]
Open Items
INTERPRETATIONSpecifications not stated here (weight, fineness, mintage, etc.) are not yet confirmed in the sources consulted. They will be added as they are confirmed.
Auction Records
No auction records confirmed for this exact type yet. Prices for the broader category are not shown as this type's prices. Confirmed records will be listed here.
References
- [1]「貨幣博物館 常設展示図録（開港と金貨流出）」（日本銀行金融研究所 貨幣博物館） — https://www.imes.boj.or.jp/cm/collection/tenjizuroku/mod/book/pageindices/index70.html（accessed: 2026-09-02）