Bulgaria
Now showing: Bulgaria - Postage stamps (1879 - 2024) - 1 stamps.
1981
The 25th Anniversary of the Bulgarian Memebership in the UNESCO
11. June WM: None Perforation: 13
![[The 25th Anniversary of the Bulgarian Memebership in the UNESCO, type DCO]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/DCO-s.jpg)