Bidspirit auction | Soviet Union Collection of Sheets

Soviet Union Collection of Sheets and Large Blocks - 1960, Philatelic Exhibition in Riccone, red overprint on Diving 40k multicolored, complete sheet of 20 with overprint variety on positions 3, 8, 13 and 18, full OG, NH, VF, SC.v. 14,000P, Sc. #2369, var