| Nominal : | 50 peso |
| Coinage Years : | 1978 |
| Material : | Aluminium bronze |
| Weight : | ? g. |
| Edge Type : | Grained |
| Edge Width : | 2.2 mm |
| Avers position : | Coin (180°) |
| Mint : | Buenos-Aires (Argentina) |
| Occasion of the coinage : | 200 anniversary of Jose de San-Martin |
| Krause # : | Argentina KM# 81 (page 112) |