Now showing: Bulgaria - Postage stamps - 1971 - The 25th Anniversary of the UNESCO - 1 stamps.
4. November WM: None Perforation: 12½
Category
From year
To year
Theme
Type
Color
Currency
Denomination
Click below to also try our advanced search:
![[The 25th Anniversary of the UNESCO, type BUW]](https://www.stampworld.com/media/catalogue/Bulgaria/Postage-stamps/BUW-s.jpg)
