Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2

Bulgaria - Postage Due stamps

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Start price: $150

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1884, Numerals, 5st orange, 25st lake and 50st blue, complete set of three with lozenges perforation, large part of OG, VF and scarce, each stamp with experts’ signs, C.v. $970,Scott #J1-3