Catalog
See full images - free registration
Continue with Google - no registration!
or register with email
Why register? Just to keep bots out of our catalog. Your email stays private - we will never share it or send you anything uninvited. We guarantee you that!
1 Ryō 'Genbun Koban' reverse regular 文 BUN
| Issuer | Tokugawa Shogunate Mint |
|---|---|
| Year | 1736-1818 |
| Type | Standard circulation coin |
| Value | Log in to see details |
| Currency | Log in to see details |
| Composition | Log in to see details |
| Weight | Log in to see details |
| Diameter | Log in to see details |
| Thickness | Log in to see details |
| Shape | Log in to see details |
| Technique | Log in to see details |
| Orientation | Log in to see details |
| Engraver(s) | Log in to see details |
| In circulation to | Log in to see details |
| Reference(s) | Log in to see details |
| Obverse description | Log in to see details |
|---|---|
| Obverse script | Chinese (traditional, regular script) |
| Obverse lettering | Log in to see details |
| Reverse description | Log in to see details |
| Reverse script | Log in to see details |
| Reverse lettering | Log in to see details |
| Edge | Log in to see details |
| Mint | Kinza (Gold Mint), Edo |
| Mintage | Log in to see details |
| Additional information |
The Genbun Koban was struck from 1736 following a deliberate debasement ordered by Senior Councillor Matsudaira Norimura, reducing gold fineness sharply from the preceding Kyōhō Koban. The Tokugawa treasury was under sustained fiscal pressure, and the recoinage — melting down higher-purity coins to strike more numerous lower-purity ones — generated immediate profit for the bakufu while quietly eroding the currency. It remained in production for over eighty years, one of the longest runs of any koban type.
The "regular 文" designation distinguishes standard reverse stamps from rarer certified variants. Issued across the tenures of four shoguns.