Bulgarie
Montre maintenant: Bulgarie - Timbres-Poste (1879 - 2024) - 2 Timbres-poste.
1978
Preservation of the Architectural Heritage in Europe
1. novembre WM: Aucun Perforation: 13 x 13½
1978
International Stamp Exhibition "ESSEN '78" - Preservation of the Architectural Heritage in Europe Overprinted in Left and Right Side
5. novembre WM: Aucun Perforation: 13 x 13½