Catalog
| Location | Japan |
|---|---|
| Year | |
| Type | Log in to see details |
| Composition | Brass |
| 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 |
| Edge | Log in to see details |
| Period | Log in to see details |
| Notice | Log in to see details |
| Reference(s) | Log in to see details |
| Obverse description | Log in to see details |
|---|---|
| Obverse script | Log in to see details |
| Obverse lettering | 天 保 通 寶 (Translation: Currency of the Tempo era) |
| Reverse description | Oval reverse with a raised rim and central square hole. Three Chinese characters are arranged around the hole: 當 above, 十 to the left, and 五 to the right, together reading 當十五 (value 50 mon). A mint official's signature mark appears below the hole in the lower field. |
| Reverse script | Chinese (Kanji) |
| Reverse lettering | Log in to see details |
| Mint | Log in to see details |
| Mintage | Log in to see details |
| Comments | Log in to see details |