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

Soviet Union

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Start price: $600

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1958, Voroshilovgrad Locomotive Plant, 40k brown and buff, unfolded block of four, unissued due to city name changed from Voroshilovgrad to Lugansk at that time, full OG, NH, VF, Scott #2116-18 var