Viser nu Angola - Post frimærker (1970 - 1979) - 1 frimærker.
1971
The 5th Anniversary of the Regional Soil and Foundation Engineering Conference, Luanda
22. august VM: Ingen Arkstørrelse: 50 Design: José de Moura Gravering: INCM Perforeringer: 13½
![[The 5th Anniversary of the Regional Soil and Foundation Engineering Conference, Luanda, type KX]](https://www.stampworld.com/media/catalogue/Angola/Postage-stamps/KX-s.jpg)
