History of Aviation, Rare Stamps and Postal History of the World, Part 2
Lot 527:
1922, blue black Alex Thom overprint on King George V Sea Horses 2s6p brown, 5s carmine rose and 10s gray blue, full OG, previously hinged, F/VF, C.v. $2,290, Hibernian #T39-41, €2,250, Est. $800-$1,000 , Sc. #36-38
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