Montre maintenant: Angola - Timbres-Poste (1870 - 2019) - 1 Timbres-poste.
1971
The 5th Anniversary of the Regional Soil and Foundation Engineering Conference, Luanda
22. août WM: Aucun Taille de la feuille: 50 Modèle: José de Moura Gravure: INCM Perforation: 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)
