| Nominal : | 50 dollars |
| Coinage Years : | 1989 |
| Material : | Silver 999 |
| Weight : | 31.1 g. |
| Edge Type : | Grained |
| Edge Width : | ? mm |
| Avers position : | Medal (0°) |
| Mint : | Sunshine Mining Co. Mint, Idaho |
| Signs on the coin : | S |
| Occasion of the coinage : | First Artificial Earth's satellite. |
| Krause # : | Marshall islands KM# 24 (page 1467) |