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

Russian Semi-Postal Issues

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Start price: $6,000

Buyer's premium:

1905, Russo-Japanese War Charity issue, stage proofs of 3+3k, 5+3k, 7+3k and 10+3k in black color only, complete set of four, approximate size 46×59-65mm, printed on white wove paper without gum, VF and extremely rare in complete set, Est. $10,000-$12,000, Scott #B1-4