Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1
Lot 38:
Description
1928 (October 11-15), America Flight cover franked by Large Airplane 2½g violet brown in horizontal pair, tied by oval ”4.10.28” date stamp, blue oval confirmation marking on front and NYC ”16.OCT.1928” drop on reverse, VF and scarce, Sieger #21, C.v. €650++, Est. $300-$400, Scott #C30 x2
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