| Issuer: Cuba
Issue: 6th National Stamp Exhibition Date: 10/10/1978 (1978 sheets) INCOMPLETE Block 1 (0, 0 x 0) 0, 0: 50c |
External links: Colnect 191717..ic_Exhibitions |
| Issuer: Cuba
Issue: 6th National Stamp Exhibition Date: 10/10/1978 (1978 sheets) INCOMPLETE Block 1 (0, 0 x 0) 0, 0: 50c |
External links: Colnect 191717..ic_Exhibitions |
