Bulgaaria
Praegu kuvatakse: Bulgaaria - postmargid (1879 - 2024) - 1 margid.
1981
The 25th Anniversary of the Joint Institute for Nuclear Research, Dubna
10. märts WM: mitte ükski perforatsioon: 13¼ x 13
![[The 25th Anniversary of the Joint Institute for Nuclear Research, Dubna, Tüüp DBG]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/DBG-s.jpg)
