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1980 Airmail – The 150th Anniversary of the Death of General Antonio Jose de Sucre, 1795-1830
1980 Airmail – The 150th Anniversary of the Death of General Antonio Jose de Sucre, 1795-1830
1980 Airmail – The 2nd International Music Competition, Ibague
1980 Airmail – The 2nd International Music Competition, Ibague
1979 Airmail – The 350th Anniversary of Barranquilla and 60th Anniversary of Avianca National Airline
1979 Airmail – The 350th Anniversary of Barranquilla and 60th Anniversary of Avianca National Airline
1979 The 20th Anniversary of Community Works Boards
1979 The 20th Anniversary of Community Works Boards
1979 The 120th Anniversary of the Birth of Rafael Uribe Uribe, 1859-1914
1979 The 120th Anniversary of the Birth of Rafael Uribe Uribe, 1859-1914
1979 Airmail – The 100th Anniversary of the Death of Sir Rowland Hill, 1795-1870
1979 Airmail – The 100th Anniversary of the Death of Sir Rowland Hill, 1795-1870