Colombia, SCADTA Airpost collection, 1920-1930's. Accumulation of nearly 700 mostly used and a few better mint examples, lots of multiples, consular overprints, myriad of postmarks, "Seaplane over Magdalena River", "Plane of Magdalena River", "Plane over Bogota Cathedral", "Columbus Ship" and other designs, and much more; values to 5p, considerable catalog value, should be carefully examined for hidden value, condition generally F-VF or better, please inspect. Estimate  $500 - 750. $0