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

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1978, Christmas, 15c blue and multi, bottom left corner sheet margin plate No’s 38731-38736 imperforate block of 12, tiny wrinkle between 3rd and 4th rows, full OG, NH, VF, C.v. $420++, Scott #1768a