| Issuer | Japan |
|---|---|
| Year | 1657 |
| Type | Non-circulating coin |
| Value | 1 Mon |
| Currency | Mon (683-1953) |
| Composition | Silver |
| Weight | 4.6 g |
| Diameter | 24 mm |
| Thickness | |
| Shape | Round with a square hole |
| Technique | |
| Orientation | |
| Engraver(s) | |
| In circulation to | |
| Reference(s) |
| Obverse description | Four characters around center hole |
|---|---|
| Obverse script | |
| Obverse lettering | 寛 寶 通 永 (Translation: Currency of Kan`ei) |
| Reverse description | Blank. |
| Reverse script | |
| Reverse lettering | |
| Edge | Smooth |
| Mint | |
| Mintage | ND (1657) - varieties exist; approx. date - |
| Numisquare ID | 1482594870 |
| Comments |