Bulgaaria
Praegu kuvatakse: Bulgaaria - postmargid (1879 - 2024) - 2 margid.
1973
Underwater Exploration
24. jaanuar WM: mitte ükski perforatsioon: 12½
![[Underwater Exploration, Tüüp BYC]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/BYC-s.jpg)
![[Underwater Exploration, Tüüp BYD]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/BYD-s.jpg)
![[Underwater Exploration, Tüüp BYE]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/BYE-s.jpg)
![[Underwater Exploration, Tüüp BYF]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/BYF-s.jpg)
1973
Underwater Exploration
24. jaanuar WM: mitte ükski perforatsioon: Imperforated
![[Underwater Exploration, Tüüp ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/2224-b.jpg)