Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 1

United States - Modern Errors

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Start price: $200

Buyer's premium:

1991, definitive issue, tulip (29c) ”F” yellow, black, red and yellow green, top margin vertical imperforated pair, full OG, NH, VF and scarce, C.v. $1,000, Est. $350-$400 , Sc. #2517a