| Ruler | - |
| Mint | - |
| Date | 1977 |
| Size (mm) | 31 |
| Weight (g) | 13 |
| Die Axis | - |
| Tariff | 50 Korun |
| Ob. Leg. | CESKOSLOVENSKA SOCIALISTICKA REPUBLIKA |
| Ob. Desc. | Lion (rampant) stylised shield within |
| Meaning | - |
| Rev. Leg. | Jan Kollar 1852-1977 | Rev. Desc. | Bust facing | Meaning | References; | Collection; Krause , Novotny 133 | Notes: | 120th anniversary of the death of Jan Kollar |