Stamp Auction #63 on

1919, black overprint "1er Servicio Postal Aereo. 6-18-19" on 2c carmine rose, fresh and flawless exemplar from position 9 of the setting, large part of OG, previously hinged, VF and rare, several hs signatures on reverse, PF and A. Roig certificates, only 200 stamps were overprinted for the first experimental flight from Barranquilla to Puerto Colombia, 160 of those were used on correspondences, remained 40 copies made this stamp an unconditional airpost rarity, C.v. $3,500 for a faulted stamp