1923, definitive issue, Leningrad Provisional perforation on lithographed stamps of 1k (14½x15), 2k and 3k (12x12¼), all three values with full OG, NH, VF, very scarce and guaranteed genuine, Est. $300-$350 (Image)

1924, Lenin Mourning issue, 3k-20k, imperforated and perforated complete sets of four, first one with wide frame in horizontal pairs, full OG, NH, mostly VF (Image)

1924, Lenin Mourning issue, 3k-20k, imperforated complete set of four with narrow frame variety, nice and fresh, full OG, NH, VF and scarce in sound condition, Est. $1,000-$1,200 (Image)

1924, Lenin Mourning issue, 3k-20k, imperforated complete set of four with narrow frame, fresh quality, full OG, 6k and 12k are NH, the ''key'' values are hinged, VF, Est. $600-$750 (Image)

1925, Lenin Mausoleum, 7k-40k, imperforated and perforated complete sets of four, full OG, NH (40k imperf, 7k, 14k and 40k perf) or VLH, F/VF (Image)

1925, Lenin Mausoleum, 7k-40k, imperforated complete set of four, used on registered FDC from the 1st All-Union Philatelic Exhibition in Moscow, all appropriate markings and arrival ds, mostly VF, Est. $150-$200 (Image)

1925, definitive issue, Lenin 5r and 10r, imperforated complete set of two, both values with left sheet margins, printer's control cross on selvage, full OG, NH, VF, Est. $75-$100 (Image)

1925, definitive issue, Lenin 5r and 10r, imperforated complete set of two in horizontal pairs, full OG, NH, VF, Est. $150-$200 (Image)

1926, definitive issue, 7k-5r, imperforated complete set of eight on improved paper in blocks of four, 30k, 40k, and 2r with control inscription on selvages, full OG, NH, VF and a spectacular unit, SC #0120-27, Est. $400-$500 (Image)

1927, 10th Anniversary of the October Revolution, 5k brown, well-margined imperforated single, full OG, VLH, A. Rosselevitch guarantee hs, C.v. $1,650, Est. $650-$800 (Image)

1930, Educational Exhibition, 10k olive green, printing oval over ''15'' in bottom inscription (position 10), short one tip of perforation at top, full OG, light trace of hinge, VF (Image)

1930, third definitive issue, 1k-1r, imperforated complete set of nine, full OG, NH or LH (4k, 30k and 1r), VF, C.v. $396, Est. $150-$200 (Image)

1933, Karl Marx, 3k-35k, two complete sets of three, stamps of 10k with vertical or horizontal positions of watermark Borders and Rosettes, all are fresh, full OG, NH, VF, Est. $150-$200 (Image)

1933, Leningrad Philatelic Exhibition, red surcharges 30k on 15k and 70k on 35k, complete set of two, nice centering full OG, NH, VF, C.v. $507.50 (Image)

1933, Ethnographic issue, Nenets, 10k black brown, block of four, top left stamp with straight line across denomination variety, perfect centering and post office fresh, full OG, NH, VF (Image)

1933, Order of the Red Banner, trial printing of 20k in gray black, red and yellow with perforation 9½, nice and fresh example, full OG, LH, VF and scarce, Raritan Stamps guarantee, C.v. $4,000, Est. $1,600-$2,000 (Image)

1935, Anti-War Propaganda issue, 5k-35k, complete set of five, nicely centered with fresh colors, full OG, NH, VF, C.v. $1,075, Est. $500-$600 (Image)

1935, Friedrich Engels, 5k-20k, complete set of four, fresh and nice, full OG, NH or VLH (15k, appears NH), VF, C.v. $165 (Image)

1935, Mikhail Kalinin, 20k black brown, nice four-side margins imperforated single, full OG, previously hinged, VF, C.v. $1,500, Est. $450-$550 (Image)

1935, Leo Tolstoy, 3k-20k, complete set of three with perforation 14, singles of 3k, 20k and 10k in block of four with perforation 11, each item with watermark ''1'' on sheet margin, full OG, NH, VF and an interesting group, Est. $300-$400 (Image)

1936, Pioneers Helping Post, 1k-15, perforation 14 and 11, two complete sets of six, full OG, all are NH (5k with perf 11 has natural spot of gum skip), VF, C.v. $243 (Image)

1937, Architectural Projects, 40k violet, souvenir sheet of four without text at the top and bottom, size 120x92mm, pin-point translucent natural inclusion at the bottom margin, nice condition, full OG, NH, VF and extremely rare, expertized by Z. Mikulski (Image)

1937, Felix Dzerzhinsky, 10k-80k, complete set of four used (August 10) on registered pre-printed (Soviet Philatelic Association) cover from Moscow to Vienna, arrived on August 16 and forwarded to Edlitz (17.VIII.), mostly VF (Image)

1937, definitive issue, farm worked 4k claret, printed on paper without watermark, unfolded block of four, full OG, NH, VF, C.v. $500++, Est. $140-$180 (Image)

1937, definitive issue, peasant 20k green on paper with bluish green network, four-side margins imperforated single, large part of OG, VF, C.v. $600, Est. $250-$300 (Image)