Seikan Tunnel Opening 500 yen Cupronickel Coin

| Material | Cupronickel |
|---|---|
| Composition | Copper 750 Nickel 250 |
| Weight | 13g |
| Diameter | 30mm |
| Year of Production | 1988 |

| Material | Cupronickel |
|---|---|
| Composition | Copper 750 Nickel 250 |
| Weight | 13g |
| Diameter | 30mm |
| Year of Production | 1988 |