Bidspirit auction | Soviet Union - 3rd Definitive

Soviet Union - 3rd Definitive Issue Imperforated Stamps - 1931-32, the third definitive issue, 1k-30k, imperforated set of eight in blocks of four, all with sheet margins, somewhat gum foxing on 15k, still nice and fresh unit, full OG, NH or hinged (blocks with large top margin are completely NH, others have two top stamps hinged), VF, Est. $500-$600, Scott #456-66