The First Anniversary of the Bulgarian-Soviet Friendship Treaty 1978
Now showing: Bulgaria - Postage stamps - 1978 - The First Anniversary of the Bulgarian-Soviet Friendship Treaty - 1 stamps.
1978
The First Anniversary of the Bulgarian-Soviet Friendship Treaty
18. March WM: None Perforation: 13
![[The First Anniversary of the Bulgarian-Soviet Friendship Treaty, type CPF]](https://www.stampworld.com/media/catalogue/Bulgaria/Postage-stamps/CPF-s.jpg)
