Dabar rodoma: Angola - Pašto Ženklai (1970 - 1979) - 1 ženklai.
1971
The 5th Anniversary of the Regional Soil and Foundation Engineering Conference, Luanda
22. rugpjūtis WM: Niekas Popieriaus-dydis: 50 Dizainas: José de Moura Graviravimas: INCM Perforacija: 13½
![[The 5th Anniversary of the Regional Soil and Foundation Engineering Conference, Luanda, tipas KX]](https://www.stampworld.com/media/catalogue/Angola/Postage-stamps/KX-s.jpg)
