1923 (October 17), registered cover from Moscow to USA, franked by 13 definitive imperforated lithographic stamps of the first issue, met altogether 50k postal rate, bearing in addition RSFSR 250r violet in block of four (which was not valid for postage at that time, but properly cancelled), postmarked in NYC at ''11-2-1923'', mostly VF (Image)

1924, definitive issue, soldier 40k slate gray, litho printing, enlarged margins imperforated single with design printed on both sides (on gum side – inverted), full original gum with slight crease as always exists, NH, VF and rare (Image)

1924, definitive issue, soldier 40k slate gray, litho printing, imperforated single with ample margins, printed on both sides with upside down design on gum as always, invalidating perforation at top, full OG, NH, VF (Image)

1924-25, definitive issue, peasant 50k brown, typo printing, imperforated single with enlarged margins especially at sides, full OG, previously hinged, VF and very rare, C.v. $6,750 (Image)

1925, definitive issue, perforated (harrow 12) proof of soldier 10k in deep blue, typo printing on thinned chalk- surfaced paper, some perf irregularities at right, fresh quality, full OG, NH, F/VF and very rare (Image)

1924-25, definitive issue, worker 20k light green, typo printing, imperforated bottom sheet margin single on grayish paper, nice condition, full OG, previously hinged, VF, some Russian experts considered this stamp as a proof, because of light green color, Soviet Philatelic guarantee hs, Raritan Stamps opinion (Image)

1924-25, definitive issue, soldier 40k slate gray, typo printing, imperforated single on grayish paper, beautiful margins, very slight full original gum crease, previously hinged, VF and rare, Raritan Stamps guarantee (Image)

1924-25, definitive issue, soldier 3r brown and green, typo printing of type I, perforation 13½x10, absolutely beautiful colors and strong proof-like impression, full OG, LH, VF and scarce, expertized by R. Calves, C.v. $2,750 (Image)

1924-25, definitive issue, soldier 3r brown and green, typo printing of type I, top left corner margin imperforated single with inverted offset of brown color on the face due to marginal foldover (stamp has no folds or bends), this error is appearing as double impression, full OG, NH, F/VF and probably unique (Image)

1925, Lenin Mausoleum, essay of unaccepted design for 40k in violet brown, right sheet margin imperforated block of four, printed on paper with horizontal watermark Borders and Rosettes, full OG, NH, VF and rare multiple (Image)

1925, definitive issue, Lenin 5r brownish red and 10r indigo, imperforated complete set of two in right sheet margin horizontal pairs, printer's cross on the selvage, full OG, NH, VF (Image)

1925, definitive issue, Lenin 5r brownish red and 10r indigo, imperforated complete set in bottom right corner sheet margin blocks of four, printed on paper with vertical watermark Borders and Rosettes, full OG, NH, VF (Image)

1925, Academy of Sciences, 3k orange brown, perforation L12½, left sheet margin unfolded block of four, full OG, NH, VF (Image)

1925, Centenary of the Decembrist Mutiny, 3k olive green, comb (!) perforation 13½, bottom right corner sheet margin horizontal pair with two blank labels at bottom, full OG, NH, VF (Image)

1926, definitive issue, 7k-5r, imperforated complete set of eight on improved paper, 7k-2r in horizontal gutter pairs (most with sheet margins), 3r and 5r in vertical bottom sheet margin pairs, full OG, NH, VF (Image)

1926, definitive issue, 7k-5r, imperforated complete set of eight on improved paper, sheet margin blocks of four, 2r is vertical gutter block, full OG, NH, VF (Image)

1927, definitive issue, black surcharge 8k on soldier 7k brown, complete set of three stamps with space between lines of 2mm, full OG, NH, as well as two used stamps with space of 0.7mm, perforation 12x12½ on paper without and with watermark, mostly VF (Image)

1927, Aleksandr Popov, Radio Pioneer, red surcharge 8k on 7k blue, horizontal pair, right stamp with inverted ''8'' of surcharge, full OG, NH (error stamp) or LH, VF, C.v. $180++ (Image)

1927, black surcharges 8k on Postage Due stamps of 1k-14k, set of eight in top sheet margin vertical gutter blocks of four, printed on paper without watermark, including litho – 3k (perf 12), 7k and 10k (perf 14), typo – 1k, 2k, 3k, 8k and 14k, perfect quality unit, full OG, NH, VF (Image)

1927, black surcharges (type I) 8k on Postage Due stamps of 1k-14k, complete set of seven printed on watermarked paper, cross-gutter blocks of 16, post office fresh quality, full OG, NH, VF and an eye-catching unit (Image)

1927, black surcharge (type II) on Postage Due stamp of 2k violet, printed on watermarked paper, top sheet margin block of four, full OG, NH, VF and scarce multiple (Image)

1927, Dr. Zamenhof, Creator of Esperanto, 14k yellow green and dark brown, bottom right corner sheet margin imperforated block of four, full OG, traces of hinges at four corners, leaving right pair is NH, tiny fingerprint on gum, VF, rare and nice looking item, C.v. $4,450 as singles (Image)

1927, 10th Anniversary of the October Revolution, 3k, 5k, 7k, 8k and 28k, set of five values, all with part of perfin ''Obrazets'' placed horizontally, each stamp has one or more sides of perforation trimmed by scissors, full OG, LH, mostly VF and very scarce, all are guaranteed genuine, ex-Vadim Ustinovsky (Image)

1927, 10th Anniversary of the October Revolution, 7k myrtle green, left sheet margin imperforated single, full OG, NH, VF, ex-L. Schneidman (Image)

1927-28, the second definitive issue, 1k-80k, complete set in blocks of four, 18k olive with two-tip separation at top, 5k folded once along horizontal perforation, post office fresh quality unit, full OG, NH, VF and scarce in such crisp condition (Image)