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

Imperial Russia - Tercentenary of the Romanov Dynasty

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Start price: $750

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1913, Elisabeth Petrovna, die proof of 50k in gray, printed on chalk-surfaced thick paper, size 38x45mm, no gum as produced, previously hinged, flawless and VF, Scott #99