Bulgaria
Now showing: Bulgaria - Postage stamps (1879 - 2024) - 2 stamps.
1973
Underwater Exploration
24. January WM: None Perforation: 12½
![[Underwater Exploration, type BYC]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/BYC-s.jpg)
![[Underwater Exploration, type BYD]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/BYD-s.jpg)
![[Underwater Exploration, type BYE]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/BYE-s.jpg)
![[Underwater Exploration, type BYF]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/BYF-s.jpg)
1973
Underwater Exploration
24. January WM: None Perforation: Imperforated
![[Underwater Exploration, type ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/2224-b.jpg)