| Issuer: Bulgaria
Date: 9/6/1976 (1976 sheets) INCOMPLETE Block 1 (0, 0 x 0) |
External links: Colnect 112054.._1976_Montreal Record of changes |
| Issuer: Bulgaria
Date: 9/6/1976 (1976 sheets) INCOMPLETE Block 1 (0, 0 x 0) |
External links: Colnect 112054.._1976_Montreal Record of changes |
