| Issuer | Japan |
| Year | 1772-1824 |
| Type | Standard circulation coin |
| Value | 1/8 Ryō |
| Currency | Ryō (1595-1874) |
| Composition | Silver (.978) |
| Weight | 10.19 g |
| Dimensions | |
| Thickness | |
| Shape and Technique | Rectangular (irregular) Hammered, Countermarked |
| Orientation | Medal alignment ↑↑ |
| Engraver(s) | |
| In circulation to | |
| Reference(s) | C#13, JNDA#09-47, DHJ#9.71-74 |
| Obverse description | Ten kanji in pearl border, reading `以南鐐八片 換小判判一両` |
| Obverse script | |
| Obverse lettering | 換以 小南 判鐐 一八 両片 (Translation: Take eight pieces Nanryō to exchange for one ryō koban) |
| Reverse description | A Fundō (symbol for official weight) with an incuse stamp 定 to the left of it over 4 kanji surrounded by pearl border. |
| Reverse script | Chinese (traditional, regular script) |
| Reverse lettering | 定 常銀 是座 (Translation: Guaranteed Ginza (Silver Mint) Jōze (Mint Official)) |
| Edge | Plain or with filing, with incuse sakura (see comments) |
| Mint | |
| Mintage | ND
(1772-1788) - DHJ# 9.71; Meiwa type - 30 655 040 ND (1772-1788) - DHJ# 9.72; Meiwa type; large specimen - ND (1800-1824) - DHJ# 9.73; Kansei type - 16 809 296 ND (1800-1824) - DHJ# 9.74; Kansei type; large specimen - |
| Catalog ID | 8603682200 |
| Comments |
