| Issuer | Japan |
| Year | 1819-1828 |
| Type | Standard circulation coins |
| Value | 1 Ryō |
| Currency | Ryō (1595-1874) |
| Composition | Gold (.559) (Ag 44.1%) |
| Weight | 13.07 g |
| Dimensions | |
| Thickness | |
| Shape and Technique | Oval Hammered |
| Orientation | Medal alignment ↑↑ |
| Engraver(s) | |
| In circulation to | 2 August 1842 |
| Reference(s) | C#22a , JNDA#09-20 , DHJ#8.23 |
| Obverse description | Fan-shaped Kiri crest on the top and bottom, beneath value in upper square and mint official family name and seal in lower one. |
| Obverse script | Chinese (traditional, regular script) |
| Obverse lettering | 壱 両 光 次 (Translation: One Ryō Mitsutsugu) |
| Reverse description | Era marker at upper right, mint official seal in center. With two stamp marks of mint officials at lower left. |
| Reverse script | Chinese (traditional, grass script), Chinese (traditional, regular script) |
| Reverse lettering | 文 石 五 (Translation: Bun Ishi Go) |
| Edge | |
| Mint | |
| Mintage | ND
(1819-1828) - 仲・五 - ND (1819-1828) - 仲・吉 - ND (1819-1828) - 大・吉 Presentation to the Shogun - ND (1819-1828) - 小・吉 - ND (1819-1828) - 石・五 - 11 043 360 ND (1819-1828) - 石・吉 - |
| Catalog ID | 4018377400 |
| Comments |
