| Issuer: Mongolia
Date: 5/5/1980 (1980 sheets) INCOMPLETE Block 1 (0, 0 x 0) 0, 0: 4t d=London 80 sheet |
External links: Colnect 249694..amp_Exhibition |
| Issuer: Mongolia
Date: 5/5/1980 (1980 sheets) INCOMPLETE Block 1 (0, 0 x 0) 0, 0: 4t d=London 80 sheet |
External links: Colnect 249694..amp_Exhibition |
