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

Russia and Soviet Union - Locals of the Civil War period - South Russia - Yekaterinodar issue

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Start price: $100

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1918-20, double black surcharge ”-1r.” on imperforate 3k red, three-side margin block of 15, pinhole at top left corner, watermark Wavy Lines at left selvage, full OG, NH, VF, C.v. $450++, Est. $200-$250, Scott #38b