Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1
Lot 6:
Description
1936 (February 23), Willy Ley Greenwood Lake (NY) Flight cacheted cover, franked by Special Delivery stamp of 16c blue, tied by Hewitt ds, bearing green rocket imperforate stamp cancelled with violet flight marking, in addition cover from RRI Rocket Flight IX commemorating World’s First Successful Rocket Post Flight, VF, Est. $200-$250, Scott #E1
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