1976 Airmail – Habitat. U.N. Conference on Human Settlements
1976 Airmail – Habitat. U.N. Conference on Human Settlements
Colombia
1976 The 4th Cane Sugar Export and Production Congress, Cali
1976 The 4th Cane Sugar Export and Production Congress, Cali
1975 The 100th Anniversary of Reconstruction of Cucuta City
1975 The 100th Anniversary of Reconstruction of Cucuta City
1975 The 300th Anniversary of the City of Medellin
1975 The 300th Anniversary of the City of Medellin
1975 The 150th Anniversary of Rafael Nunez, 1825-1894
1975 The 150th Anniversary of Rafael Nunez, 1825-1894
1975 Airmail – International Women’s Year
1975 Airmail – International Women’s Year
1975 Airmail – The 450th Anniversary of City of Santa Marta
1975 Airmail – The 450th Anniversary of City of Santa Marta
1975 The 450th Anniversary of City of Santa Marta
1975 The 450th Anniversary of City of Santa Marta