Airmail - The 6th National Engineers' Congress, 1961 and 75th Anniversary of Colombian Society of Engineers 1962
Сега се прикажува: Колумбија - поштенски марки - 1962 - Airmail - The 6th National Engineers' Congress, 1961 and 75th Anniversary of Colombian Society of Engineers - 3 марки.
1962
Airmail - The 6th National Engineers' Congress, 1961 and 75th Anniversary of Colombian Society of Engineers
12. Јуни ВМ, Управување со отпад: Ништо Дизајн: Mosdóssy Перфорација: 11½ x 12
![[Airmail - The 6th National Engineers' Congress, 1961 and 75th Anniversary of Colombian Society of Engineers, Вид ACN]](https://www.stampworld.com/media/catalogue/Colombia/Postage-stamps/ACN-s.jpg)
![[Airmail - The 6th National Engineers' Congress, 1961 and 75th Anniversary of Colombian Society of Engineers, Вид ACO]](https://www.stampworld.com/media/catalogue/Colombia/Postage-stamps/ACO-s.jpg)
![[Airmail - The 6th National Engineers' Congress, 1961 and 75th Anniversary of Colombian Society of Engineers, Вид ACP]](https://www.stampworld.com/media/catalogue/Colombia/Postage-stamps/ACP-s.jpg)
