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: $100

Buyer's premium:

1991, Christmas, Santa Claus in Chimney, (29c) multicolored, bottom left corner sheet margin ZIP block of six (3×2), imperforate vertically, full OG, NH, VF, C.v. $350 for two pairs imperf vertically, Scott #2579a