Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 1
Lot 418:
1985, AMERIPEX’ 86 Philatelic Exhibition, (22c) multicolored, red, black and blue (engraved) omitted, bottom left corner margin block of six (3×2), full OG, NH, VF, a common stamp is included, C.v. $660, PSE certificate, Est. $250-$300 , Sc. #2145a
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