The Volokolamsk RSFSR and Soviet Union Specialized Collection, Various Russian Stamps and Covers of other owners
Lot 573:
1931, Airship over the Arctic Region, perforated (10 3/4) trial color proof of 50k in dark brownish violet on paper with horizontal watermark Borders and Rosettes, removed from a presentation card with text ”Project” at the bottom, VF and extremely rare item. Only 48 imperforated proofs in brownish violet color were produced, perforated proofs of this stamp were not known to specialists until now, V. Zagorsky certificate, Est. $9,000-$12,000, Scott #C23
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