Bulgária
A mostrar agora: Bulgária - Selos Postais (1879 - 2024) - 1 selos.
1983
The 30th Anniversary of the Institute of Mining and Geology, Sofia
10. Agosto WM: Nada Perfuração: 13
![[The 30th Anniversary of the Institute of Mining and Geology, Sofia, type DKA]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Bulgaria/Postage-stamps/DKA-s.jpg)
