1949 The 1st Forestry Congress, Bogota WM: 4 1949 The 50th Anniversary of the Death of Francisco Javier Cisneros, 1836-1898 1950 Airmail – Stamps for the Airline LANSA 1950 Airmail – Previous Issues Overprinted A = “Avianca” 1950 Airmail – Previous Issues Overprinted L = “Lansa” 1950 The 75th Anniversary of U.P.U. – Inscribed “1874 UPU 1949” – Orchids and Cityscapes 1950 The 75th Anniversary of U.P.U. – Inscribed “1874 UPU 1949” – Orchids and Cityscapes 1950 Airmail – The 75th Anniversary of U.P.U. – Inscribed “1874 UPU 1949” – Orchids and Cityscapes 1950 Antonio Baraya, 1768-1816 1950 Local Motives

1939 Airmail – Previous Issues Surcharged WM: 3 1939 Airmail – Stamp Registered Items WM: 3 1939 Definitive Issues WM: 4 1940 The 100th Anniversary of the Death of General Francisco de Paula Santander, 1792-1840 WM: 2 1940 Definitive Issues WM: 4 1941 Airmail – Local Motives 1941 Definititive Issues WM: 4 1942 The 8th National Agricultural Exhibition, Palmira 1942 Honouring George Isaacs 1942 The 40th Anniversary of Wisconsin Peace Treaty ending Civil War 1944 Imprint “Columbian Bank Note Co”