JNDA#03-8
| Material | Cupronickel |
| Composition | Copper 750 Nickel 250 |
| Weight | 13grams=0.458oz |
| Diameter | 30mm=1.18in |
| Year of Production | 1985(Showa 60 year) |
This commemorative coin is a 500-yen nickel-silver coin issued in Showa 60 (1985) to mark the 100th anniversary of the establishment of the cabinet system.
The obverse features the former official residence of the Prime Minister, while the reverse features the seal of the Cabinet.
| Year | Mintage | |
| 日本国 JAPAN 五百円 500Yen 昭和六十年 Showa60year 内閣制度百年 Centennial of the Foundation of the Cabinet System | 1985 | 70,000,000 |
