Βουλγαρία
Τώρα εμφανίζεται Βουλγαρία - Γραμματόσημα (1879 - 2024) - 2 Γραμματόσημα.
1978
Preservation of the Architectural Heritage in Europe
1. Νοέμβριος WM: Κανένα Διάτρηση: 13 x 13½
![[Preservation of the Architectural Heritage in Europe, τύπος ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/2736-b.jpg)
1978
International Stamp Exhibition "ESSEN '78" - Preservation of the Architectural Heritage in Europe Overprinted in Left and Right Side
5. Νοέμβριος WM: Κανένα Διάτρηση: 13 x 13½
![[International Stamp Exhibition "ESSEN '78" - Preservation of the Architectural Heritage in Europe Overprinted in Left and Right Side, τύπος ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/2739-b.jpg)
