Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1

United States - Modern Errors and Varieties

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Start price: $150

Buyer's premium:

1990-91, Flower, rate ”F” (29c) multicolored, perforated proof in vertical pair with gutter in the middle, lightly folded between top stamp and gutter, full OG, NH, VF and scarce, this item is priced with ”-” in the Cat., Scott #2517 P