Bidspirit auction | Worldwide Pioneer Flights - Colombia

Worldwide Pioneer Flights - Colombia - 1920, Compania Colombiana de Navegacion Aerea, 10c green, block of eight (2x4), folded horizontally between second and third row, very slight foxing at a few places, no gum as produced, NH, VF, C.v. $480++, Est. $150-$200 , Sc. #C11