1927, Various Nationalities of the Soviet Union, 18k blue, complete sheet of 80 (5x8+5x8) with horizontal gutter in the middle, folded horizontally three times - at the top part between 4th and 5th rows, along topof the gutter, at the bottom part between 2nd and 3rd rows with significant separation, minor marginal flaws, otherwise nice quality, full OG, NH, VF and scarce in a complete sheet (Image)

1932-33, 3k-35k, 67 mostly mint stamps (one used block of four) and two postcards, representing set of unfolded blocks of four (less 5k), nice range of watermark varieties, full OG, NH or LH, F/VF (Image)

1931-32, 330 mostly mint stamps in singles, pairs, blocks of four and multiples, starting with three complete imperforated sets of five, including stamps with line and comb perforations, 50k dark gray blue, error of color (VLH), nice range of 10k of various shades in blocks, engraved Airship over the Dnieper Dam with different perforation and more, mainly full OG, NH or LH/hinged, F/VF (Image)

1931, 10k-1r, imperforated complete set of five, sheet or corner sheet margin blocks of four, post office fresh quality unit, full OG, NH, VF (Image)

1931, 10k-1r, imperforated and perforated complete sets of five used on two covers, first one air mail cover to Berlin, the other one cancelled on Philatelic Exhibition in 1932, sent locally in Moscow, all appropriate markings and arrival ds, mostly VF (Image)

1931, Airship over the Arctic Region, 50k dark gray blue, error of color, unfolded block of four, very light vertical gray line on the left stamps, nicely centered, full original slightly dryish gum, light traces of hinge marks, VF and scarce multiple (Image)

1931, Airship over the Arctic Region, 50k dark gray blue, error of color, used on registered flown cover from Leningrad to Italy in 1941 together with six other air post values, including Civil Aviation, complete set of five, appropriate markings and arrival ds on reverse, mostly F/VF (Image)

1925, Revolution of 1905, perforated complete set of three in blocks of four used on two addressed FD covers, tied by Leningrad ''20.12.25'' ds, all appropriate markings and arrival handstamp on reverse, VF (Image)

1927, 14k yellow green and brown, perforation 10, top margin single, full OG, NH, VF (Image)

1927, 14k yellow green and brown, enlarged margins imperforated single, full OG, NH, VF, tiny dealer's hs on reverse, C.v. $950 as hinged (Image)

1927, 14k yellow green and brown, bottom sheet margin imperforated single with two portraits of Dr. Zamenhof inverted and placed at left, vertical invalidating perforation, tiny marginal only natural inclusion, full OG, LH, VF (Image)

1927, 14k yellow green and brown, vertical pair with perforation 10 3/4x10 1/2, imperforated between stamps, diagonal line through the design of both stamps as printing plate defect, full OG, LH, VF and rare, P. Buchsbayew certificate, ex-the Matvil Collection, C.v. $8,250 (Image)

1933, Turkmens, 15k carmine rose, top left corner sheet margin single, imperforated on the left, neat CTO with full OG (missing at top margin), VF (Image)

1923, 1r-7r, 48 mint imperforated and perforated stamps in singles, pairs and blocks, including imperforated stamps of 5r with very palebackground and background shift, three fantails and three pairs imperforated between, as well as complete set in blocks of four with perforation 13 1/2, all housed on Lindner hingeless pages, full OG, NH or LH/hinged, mostly VF (Image)

1923, 1r-7r, imperforated complete set of four in horizontal pairs, two perforated complete sets of four or three with perforation 12 1/2 or 13 1/2 respectively, full OG, NH, mostly VF (Image)

1924-25, trial color proof of 6k in gray black, bottom right corner sheet margin block of four, nice quality, full OG, NH, VF (Image)

1924-25, peasant 9k orange red, beautiful balanced margins, bold color of completely flawless single, full OG, NH, VF and rare, N. Mandrovski certificate (Image)

1924-25, soldier 3r and worker 5r, complete set of two with perforation 13 1/2, in addition stamp of 5r with perforation 10 1/2, full OG, NH, VF, C.v. $495 (Image)

1924-25, soldier 3r brown and green, perforation 10x13 1/2, Vinnitsa postal cancellation, fresh quality, VF and very rare perforation variety (Image)

1924-25, soldier 3r brown and green, four-side margin (enlarged at top and at left) imperforated single, perfect condition, full OG, LH, VF and rare (Image)

1924-25, soldier 3r brown and green, top left corner margin imperforated single with inverted offset of brown color on the face due to marginal foldover (stamp did not affect), appearing as double impression, full OG, NH, F/VF and probably unique (Image)

1924-25, soldier 3r brown and green, double impression of the design (both colors), horizontal imperforated pair, invalidating perforation across the design, bottom right corner trimmed diagonally away from the stamp, full OG, NH, VF (Image)

1924-25, peasant 15k lemon yellow, unfolded block of four, postally used, nicely centered, VF and scarce multiple (Image)

1923-24, ten stamps, including complete unissued set without surcharges and surcharged issue, in addition bogus double surcharge 20k on 10r red, as well as three covers from Moscow to England, USA and Australia franked by these stamps, one of which (USA) is bearing philatelic exchange stamp on reverse, mainly full OG, F/VF (Image)

1923, 1r-10r, complete set of four in bottom right corner margin blocks of four, nice and fresh, full OG, NH, VF (Image)