Bidspirit auction | Soviet Union - Stamps and

Soviet Union - Stamps and Postal History - 1927, 10th Anniversary of October Revolution, 3k - single, 5k, 7k, 14k and 18k vertical or horizontal pairs, 8k block of four, six items with strongly misplaced or missing perforation, some with invalidating perforation line(s), full OG, NH, VF and interesting specialist unit, Est. $1,000-$1,500, Scott #375/80 var