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

Soviet Union - Stamps and Postal History

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Start price: $150

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Description

1927-28, the second definitive issue, 1k, 4k, 7k, 50k and 80k, five blocks of four with invalidating perforation across the design due to various printing or perforation errors, full OG, NH, VF and scarce unit, Est. $300-$350 , Scott #382/400