Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1
Lot 45:
1922, Second Air Post issue, six proofs of Airplane surcharges on blank pieces, three in black of 50(h) on creamy thin card, on creamy paper and on creamy piece from an old poster; one in black of 100(h) on creamy thin card (small spot of paper scratch on reverse); two of 250 (h) in black or blue on thin cards, no gum as issued, mostly VF and scarce, four with experts’ sign on reverse, Est. $250-$300, Scott #C7-9
Share this lot:
