Bulgaria
Now showing: Bulgaria - Postage stamps (1879 - 2024) - 1 stamps.
1966
The Official Opening of the New Residence of the World Health Organization(WHO)
3. May WM: None Perforation: 10½
![[The Official Opening of the New Residence of the World Health Organization(WHO), type BBO]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/BBO-s.jpg)
