Bidspirit auction | Soviet Union Stamps of 1924-40

Soviet Union Stamps of 1924-40 - 1924, definitive issue, soldier 40k slate, litho printing, right sheet margin imperforated single with design printed on both sides (on gum - upside down), in addition the similar horizontal imperforated pair (cut through design at bottom) with invalidating perforation, all with full OG, NH, VF, a single with Raritan Stamps guarantee, Est. $1,500-$2,000, Sc. #264 imp var