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| Number | Y# 157 |
|---|---|
| Country | Japan |
| Period | Akihito (Heisei) (1989 - 2019) |
| Ruler | Akihito |
| Currency | Japanese yen |
| Coin type | Commemorative coins |
| Denomination | 500 yen |
| Currency rate | 500 JPY = 3.16 USD |
| Year | Yr. 21 (2009) - 平成21年 |
| Subject | 20th Anniversary of the Enthronement of Emperor Akihito |
| Edge type | Reeded |
| Shape | Round |
| Alignment | Medal (0°) |
| Composition | Nickel-Brass |
| Weight (g) | 7 |
| Diameter (mm) | 26.5 |
| Thickness (mm) | 1.8 |
![]() | Flowers |
|---|
![]() | Anniversary Coat of arms Legend |
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| Mint | Mintage | ||
|---|---|---|---|
| UNC | BU | Proof | |
| Japan, Osaka | 10.000.000 | + | + |
| 平成21年 | (2009) | $ ***** |
