1923, mixed franking registered cover sent from Petrograd to Boston, bearing altogether seven stamps, including six of the last RSFSR definitive set and Soviet Union peasant 6k blue, litho printing, all appropriate transit and arrival markings, minor reversal soiling, still F/VF and scarce (Image)

1924, Lenin Mourning issue, 3k-20k, imperforated complete set of four with narrow frame, nice quality, full OG, NH, VF, SC #27-30 (Image)

1924-25, definitive issue, soldier 7k chocolate brown, typo printing, horizontal imperforated pair, full OG, LH, VF, SC #45 Pa (Image)

1924-25, definitive issue, worker 14k slate blue, perforation 14½x15, perfect centering and post office fresh, full OG, NH, VF, SC #49 (Image)

1924-25, definitive issue, worker 4k deep rose and worker 8k olive brown, both with perforation 12, the last one with short one tip of perforation at right, full OG, previously hinged, F/VF, SC #42A, 46A (Image)

1925, Lenin Mausoleum, 7k-40k, imperforated complete set in blocks of four, all with sheet margins except 7k, bottom left stamp of 20k with a dot over Kremlin Wall (position 26), full OG, NH, VF, SC #68-71, 70 Ka (Image)

1925, Lenin Mausoleum, imperforated proof of 7k in red brown, printed on thick security paper with text on reverse, ironed fold, fresh, no gum as issued, NH, VF, N. Mandrovski certificate, SC #68 (Image)

1925, Lenin Mausoleum, 7k-40k, perforated complete set of four, printed on thick (0.09-0.1mm) paper, full OG, previously hinged, mostly VF, SC #72A-75A (Image)

1925, definitive issue, Vladimir Lenin, 5r brick red and 10r indigo, imperforated complete set in top sheet margin blocks of four, post office fresh, full OG, NH, VF, SC #0100-01 (Image)

1926, definitive issue, 7k-5r, complete set of eight in horizontal or vertical (2r) pairs, printed on white improved paper, tiny natural marginal inclusions on 8k and 3r, perfect quality, full OG, NH, VF (Image)

1926, Vladimir Lenin, 1r dark brown and 2r black violet, two imperforated stamps printed on watermarked Borders and Rosettes paper, nice margins all around, full OG, NH, VF and scarce, SC #128-29 Pa (Image)

1926, definitive issue, Vladimir Lenin 2r black violet, perforation 12½, printed on paper with watermark Borders and Rosettes, full OG, LH, VF, SC #129A (Image)

1927, red or black surcharge 8k on commemorative stamps, complete set of six in horizontal pairs, full original creamy gum, VF, SC #211, 0212-16 (Image)

1927, inverted surcharge (type II) 8k on 1k red, printed on watermarked paper, full OG, previously hinged, VF and scarce, Soviet Philatelic guarantee hs, SC #174 II Ta (Image)

1927, inverted surcharge (type II) 8k on 7k orange, typo printing on watermarked paper, full OG, NH, VF, Soviet Philatelic and Romeko guarantee hs, SC #177 II Ta (Image)

1929-31, the third definitive issue, 1k-80k, complete set of 13 printed on watermarked Borders and Rosettes paper (Lenin 14k on paper without watermark not included), blocks of four, insignificant gum wrinkles possible, fresh and nice, full OG, NH, F/VF, SC #229-40 (Image)

1930, 1st Cavalry Army, 2k-14k, complete set in sheet margin blocks of four, upper right stamp of 2k with broken ''a'' in ''1 ay?'' variety, block of 14k slightly folded along vertical perforation, fresh condition, full OG, NH, VF, SC #251-54, var (Image)

1932, Maxim Gorki, 15k brown, bottom sheet margin imperforated horizontal pair, perfect quality, full OG, NH, VF, SC #299 Pa (Image)

1932-33, 15th Anniversary of the October Revolution, 3k- 35k, complete set of seven, full OG, NH, F/VF centering, SC #302-08 (Image)

1932, Moscow Philatelic Exhibition, 15k brown black, 35k ultra, complete set of two in vertical pairs, 35k has perforation 10½, post office fresh, full OG, NH, VF, SC #310-11A (Image)

1933, Leningrad Philatelic Exhibition, red surcharge 70k on 35k ultra, left sheet margin single without a dot after ''1933'' variety, minimal usual gum wrinkle, post office fresh quality, full OG, NH, VF, SC #316 Ka (Image)

1933, Ethnographic issue, 1k-35k, complete set of 21, nice set in every respect, full OG, NH, mostly VF and scarce never hinged, SC #313-37 (Image)

1933, Order of the Red Banner, 20k black, red and yellow, two values, one with white spot in ''CCCP'' (position 106), the other one with strong shift of yellow color, full OG, NH, F/VF, a common stamp is included, SC #344 Ka, Tb (Image)

1933, Baku Commissars, 4k-40k, complete set of five, fresh quality, usual lightly uneven gum, NH, VF, SC #345- 49 (Image)

1933, Baku Commissars, 4k-40k, complete set of five, usual slightly uneven full original gum, LH, VF, SC #345-49 (Image)