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

Soviet Union 1923-91

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Start price: $4,000

Buyer's premium:

1932, Moscow Philatelic Exhibition, imperforate souvenir sheet bearing two of each – 15k black brown and 35k ultramarine, printed on thin cardboard without any traces of staining or foxing, size 165x115mm, no gum as produced, NH, VF and very rare sheet in Museum quality, about 500 copies were printed for presentation purposes, many of those were destroyed, copy of Z. Mikulski certificate, C.v. from $19,500, Est. $8,000-$10,000, Scott #485-86 fn