Auction # 2432 WORLDWIDE + ARGENTINA: Special August auction

GJ.845/49, 1940 Sets of 5 values (stylized airplane, Mercury and biplane), 23 different COLOR PROOFS, printed on card of glazed front, PERFORATED (very scarce!), VF quality. NOTE: The market value of these perforated proofs is between US$10 and 20 each, good opportunity!