| Issuer: Hungary
Issue: Mars Exploration Date: 3/11/1974 (1974 sheets) Block 1 (1, 1 x 1) 1, 1: 10Ft |
External links: Colnect 175617..ration_of_Mars Record of changes |
| Issuer: Hungary
Issue: Mars Exploration Date: 3/11/1974 (1974 sheets) Block 1 (1, 1 x 1) 1, 1: 10Ft |
External links: Colnect 175617..ration_of_Mars Record of changes |
