| Issuer | Japan |
| Year | 2009 |
| Type | Circulating commemorative coins |
| Value | 500 Yen |
| Currency | Yen (1871-date) |
| Composition | Bimetallic: copper-nickel centre in nickel brass ring (75% Copper, 12.5% Zinc, 12.5% Nickel) |
| Weight | 7.1 g |
| Dimensions | 26.5 mm |
| Thickness | 1.8 mm |
| Shape and Technique | Round Milled |
| Orientation | Medal alignment ↑↑ |
| Engraver(s) | |
| In circulation to | |
| Reference(s) | Y#153, JNDA#07-106 |
| Obverse description | Kairakuen Garden with traditional building and Plum Tree |
| Obverse script | Latin |
| Obverse lettering | 日 本 国 IBARAKI 茨城県 五 百 円 (Translation: State of Japan Ibaraki 500 yen) |
| Reverse description | Old cast Mon coin with latent images in square hole surrounded by legends |
| Reverse script | Latin |
| Reverse lettering | JAPAN 47 PREFECTURES COIN PROGRAM 地 方(47/60)自 治 500 YEN 平成 21 年 (Translation: Local autonomy Year 21 of Heisei) |
| Edge | Slanted reeding with two different pitches |
| Mint | |
| Mintage | 21 (2009) - - 1 840 000 21 (2009) - Proof - 30 000 |
| Catalog ID | 5290824660 |
| Comments |
