1927, 40 mostly mint stamps in singles, pairs and blocks, representing two complete sets of seven (one is NH), vertical imperforated pair of 5k with invalidating perforation (NH) and top sheet margin single of 7k (expertly regummed), fresh quality unit, full OG, NH or LH, F/VF (Image)

1927, Worker-Soldier-Peasant, 3k carmine rose, top sheet margin horizontal pair, imperforated at the top, post office fresh quality item, full OG, NH, VF (Image)

1927, Lenin on Armored Car, 5k brown, four-side margin imperforated single, full OG, VLH, A. Rosselevitch guarantee hs (Image)

1927, Smolny Institute, 7k myrtle green, horizontal imperforated pair on thick slightly creamy paper, nice margins, full OG, NH, VF (Image)

1927, Smolny Institute, 7k myrtle green, bottom sheet margin horizontal imperforated pair printed on thinned paper, neat Tula cancellation, tiny thin on margin only far away from the stamps, VF (Image)

1927, Smolny Institute, imperforated proof of 7k in myrtle green (issued color), left sheet margin single printed on watermarked Borders and Rosettes paper, full OG, NH, VF, two expert's hs on reverse (Image)

1927, Smolny Institute, imperforated proof of 7k in myrtle green (issued color), left sheet margin single printed on watermarked Borders and Rosettes paper, full OG, very light trace of hinge, VF, J. Stolow guarantee hs (Image)

1927, Map of the Soviet Union, 14k blue and red, unfolded block of four, each stamp without red on Sakhalin Islands, full OG, NH or LH (1), VF (Image)

1927, Map of the Soviet Union, 14k blue and red, right sheet margin unfolded block of four, each stamp has red color strongly shifted to the top, vertical invalidating perforation, full OG, NH, VF (Image)

1927, Various Nationalities of the Soviet Union, 18k blue, top sheet margin single, imperforated at the top, neatly cancelled, mostly VF (Image)

1927, Workers of Different Races, imperforated proof of 28k in black green and red lilac, slightly different design from issued stamp, printed on paper without watermark, minor usual faults, no gum (probably removed from a presentation card, VF appearance of this rare proof, N. Mandrovski certificate (Image)

1927, 3k-28k, complete set of seven (7k with perforation 11 1/2, used on registered cover in Leningrad on November 7 (date of the Revolution), arrival ds is on reverse, mostly VF (Image)