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

RSFSR Issues 1918-23

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Start price: $300

Buyer's premium:

1918, ”Sword Breaking Chain”, 70k brown, right sheet margin block of 20 (4×5), violet cancellation of Moscow Treasury Post Office (Moskva Kaznacheystvo Postamt) on March 27, 1918, which is more then six months earlier the date of official issue of the stamp, probably used for a large item franking and bearing full OG, VF and rare exhibition item, Est. $600-$800, Scott #150