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:

1989, 100th Anniversary of the Montana Statehood, imperforate plate proof of 25c multicolored, vertical pair with balanced margins, no gum as produced, NH, VF and scarce, this item considered by Scott as printer’s waste, though USPS offered these items as plate proofs, Est. $300-$400, Scott #2401