Air Post stamps and covers. 1920-21, SCADTA, Airplane over Magdalena River, complete set in blocks of four, most with sheet margins, slight usual gum wrinkles, post office fresh, full OG, NH, VF, C.v. $1,100 as hinged singles (Image)

Air Post stamps and covers. 1923-28, Seaplane over Magdalena River and Bogota Cathedral, complete set in sheet margin blocks of four, including registration stamp, full OG, NH, VF, C.v. $817.40 as hinged singles (Image)

Air Post stamps and covers. 1953, Ministry of the Communications Building, set of three values, each one with double surcharge ''Aereo'' and new denominations, full OG, NH, VF, each one with Kessler guarantee hs on reverse (Image)