Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 3

Russian Locals of the Civil War period - Kharkov

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Start price: $100

Buyer's premium:

1920, double black downwards (inverted) overprint ”RUB” on 5k claret, vertical strip of four (perforation reinforcement in the middle), third stamp from the top without overprint, Kharkov postal cancellation, mostly VF and a scarce item, Est. $200-$250, Scott #68a var