Lot
314 
Colombia, 1919, 2c carmine rose, "1er Servicio Postal Aereo 6-18-19" overprint, on flown cover from Barranquilla to Puerto Colombia, cds cancels dated "Jun 18 1919", Extremely Fine, extremely scarce with only 160 covers flown; with 1953 Philatelic Society of Argentina certificate. Scott No. C1 $1,500.
Realized: $725