| Location | United States (US territories United States) |
|---|---|
| Year | 1977 |
| Type | Collection medallion |
| Composition | Silver (.925) |
| Weight | 20.23 g |
| Diameter | 38.2 mm |
| Thickness | |
| Shape | Round |
| Technique | Milled |
| Orientation | Medal alignment ↑↑ |
| Edge | Plain with mintmarks and inscription. |
| Period | |
| Notice | |
| Reference(s) | Franklin#GEM-30 |
| Obverse description | Bust in oval facing left, men in a boat. |
|---|---|
| Obverse script | Latin |
| Obverse lettering | JG |
| Reverse description | Inscribed compass. |
| Reverse script | Latin |
| Reverse lettering | RINZO MAAMIYA In 1808 he conducted the first Japanese overseas exploration and proved that Sakhalin was an island. FM |
| Mintage | |
| Numisquare ID | 6965953080 |
| Comments |