| Issuer | Japan |
| Year | 2021 |
| Type | Non-circulating coin |
| Value | 10 000 Yen |
| Currency | Yen (1871-date) |
| Composition | Gold (.999) |
| Weight | 15.6 g |
| Dimensions | 26 mm |
| Thickness | |
| Shape and Technique | Round Milled |
| Orientation | Medal alignment ↑↑ |
| Engraver(s) | |
| In circulation to | |
| Reference(s) | Y#317, KM#03-85 |
| Obverse description | Letter collection box on the right, work scene of mail being loaded in the Meiji period on the left. |
| Obverse script | |
| Obverse lettering | 日 本 国 壱 万 円 (Translation: State of Japan 10,000 yen) |
| Reverse description | Entrance to the former Tokyo Central Post Office surrounded by legend. |
| Reverse script | |
| Reverse lettering | 郵 便 制 度 150 年 TOKYO CENTRAL POST OFFICE 〒 • 10000 YEN • 令 和 3 年 • (Translation: 150 years postal system Year 3 of Reiwa) |
| Edge | Slanted reeding |
| Mint | |
| Mintage | 3 (2021) - Proof - 20 000 |
| Catalog ID | 3421054300 |
| Comments |
