1935, National Olympic Games, complete set of 16, very fresh without usual toning, full OG, NH, F/VF and scarce in this premium quality, C.v. $1,028 as hinged

1920-21, Seaplane over Magdalena River, complete set in sheet margin blocks of four, block of 50c has two stamps with pre-printing paper fold and in addition it is imperforated at the top, full OG, NH, F/VF, C.v. $670 as hinged singles

500.00

1923-28, Seaplane over Magdalena River and Bogota Cathedral, complete set of 14, including registration stamp, full OG, NH, VF, C.v. $134.35 as hinged

100.00

March 28-30, 1931, pre-printed cover from Cali and Cristobal to Czechoslovakia, franked by three Colombian stamps, upon arrival to Cristobal uprated by Canal Zone surcharge 20c on 2c carmine (#C5), SCADTA blue label, arrival ds and all appropriate markings, VF and nice mixed franking cover

150.00