Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 2
Lot 725:
1990, Pronghorn, 45c multicolored, vertical imperforated pair, appropriate margins around, full OG, NH, VF, C.v. $750, Unitrade C.v. CAD$1,200, Est. $300-$400 , Sc. #1172h
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