Tani duke shfaqur: Angola - Pulla Poste (1970 - 1979) - 1 pulla.
1971
The 5th Anniversary of the Regional Soil and Foundation Engineering Conference, Luanda
22. Gusht WM: Asnje Madhesia e Faqes : 50 Dizajni: José de Moura Gravure : INCM Performanca: 13½
![[The 5th Anniversary of the Regional Soil and Foundation Engineering Conference, Luanda, Tipi KX]](https://www.stampworld.com/media/catalogue/Angola/Postage-stamps/KX-s.jpg)
