Praegu kuvatakse: Angoola - postmargid (1970 - 1979) - 1 margid.
1971
The 5th Anniversary of the Regional Soil and Foundation Engineering Conference, Luanda
22. august WM: mitte ükski lehe suurus: 50 Disain: José de Moura Gravüür: INCM perforatsioon: 13½
![[The 5th Anniversary of the Regional Soil and Foundation Engineering Conference, Luanda, Tüüp KX]](https://www.stampworld.com/media/catalogue/Angola/Postage-stamps/KX-s.jpg)
