Worldwide Air Post Stamps and Postal History, One Man Collection of Tannu Tuva, Philatelic Rarities of the World, Part 2

Russia and Soviet Union - Russian Postage Due stamps

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Start price: $4,250

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Description

1925, Numerals, 1k red, 2k lilac, 8k green and 10k dark blue, imperforate complete set of four (3k, 7k and 14k are not known imperforate), litho printing on wove paper, full OG, LH, VF and extremely rare, each stamp with N. Mandrovski certificate, some specialists are considering these stamps as plate proofs, Est. $8,000-$10,000, Scott #J11-12, J16-17 imp