Visar nu: Angola - Postfrimärken (1970 - 1979) - 1 frimärken.
1971
The 5th Anniversary of the Regional Soil and Foundation Engineering Conference, Luanda
22. augusti WM: Inga storlek på arket: 50 Design: José de Moura Gravyr: INCM Perforering: 13½
![[The 5th Anniversary of the Regional Soil and Foundation Engineering Conference, Luanda, Typ KX]](https://www.stampworld.com/media/catalogue/Angola/Postage-stamps/KX-s.jpg)
