Bidspirit auction | Soviet Union - Stamps and

Soviet Union - Stamps and Postal History - 1927, 10th Anniversary of the Revolution, 5k brown, large margins imperforate single, printed on white ordinary paper (perforated stamps were printed on chalk-surfaced paper), full OG, NH, VF and rare, C.v. $2,500, Est. $1,000- $1,500 , Scott #376a