1924, Lenin Mourning issue, 3k-20k, imperforated complete set in blocks of four, wide frame, full OG, NH, VF, SC #27B-30B (Image)

1924-25, definitive issue, worker 4k carmine, typo printing, vertical pair with double impression, full OG, NH, VF, SC #24 Ta (Image)

1924-25, definitive issue, soldier 7k brown, typo printing, perforation 14½x15, complete pane of 25, containing five horizontal strips of five, each one with perfin ''Obrazets'' with additional invalidating perforation, full OG, NH, VF, SC #45 (Image)

1924-25, definitive issue, soldier 3r dark brown and green, perforation 13½x10, nicely centered and very fresh, full OG, LH, VF, Z. Mikulski certificate (Image)

1924, cover from Nizhni Novgorod to Vienna, franked altogether by five values (one is defected), three – on reverse, including two postal advertising labels, each one with peasant 6k blue affixed over, no arrival marking as often, some conveyance flaws, F/VF and scarce (Image)

1925, registered cover from Moscow to Berlin, franked altogether by seven stamps, including complete surcharged set of ''Fokker 111'' and soldier 7k brown over postal tobacco advertising label on reverse, postmarked on arrival, fresh and VF (Image)

1926, registered large size cover from Kiev to Jena (Germany), franked by two definitive values, including 8k brown olive over ''Sovtorgflot'' postal advertising label (second issue, which is scarce), arrival ds on reverse, vertical fold and some wearing, still fine (Image)

1925, definitive issue, worker 2r green and rose, printed on watermarked paper, perforation 12, full offset of the design on gum side, top right corner sheet margin block of four, full OG, NH, VF, SC #95 var (Image)

1926, definitive issue, 7k-5r, imperforated complete set of eight printed on white improved paper, nice margins, full OG, NH, VF (Image)

1926, Vladimir Lenin, 1r-3r, complete set of three, printed on watermarked ''Borders and Rosettes'' paper, full OG, NH, VF, SC #128-30 (Image)

1927, red surcharge 8k on Aleksandr Popov 7k blue, block of six (3x2), middle stamp in the top row with inverted ''8'' variety, post office fresh quality, full OG, NH, VF, SC #211, Ka (Image)

1927, inverted surcharge (type II) 8k on 7k orange, typo printing on watermarked paper, full OG, NH, VF, Soviet Philatelic guarantee hs, SC #177 II Ta, C.v. 40,000? (Image)

1927, Dr. Zamenhof, 14k bright green and brown, vertical imperforated pair, nice margins all around, full OG, NH, VF, dealer’s guarantee hs on reverse, SC #184 Pa (Image)

1927, 10th Anniversary of the October Revolution, imperforated proof of 7k in myrtle green, printed on watermarked Borders and Rosettes paper, balanced margins, full OG, NH, VF, SC #204 (Image)

1932, Moscow Philatelic Exhibition, maximum card representing Museum of Fine Arts in Moscow on front with complete set of two stamps affixed on reverse and tied by Exhibition postmark, minor perforation soiling, still VF (Image)

1933, Ethnographic issue, 1k-35k, complete set of 21, nice quality, full OG, LH, mostly VF, SC #317-37 (Image)

1933, Order of the Red Banner, trial printing of 20k multicolored with perforation L9½, nicely centered and choice stamp, full original uneven gum as always exists, VF, SC #344A (Image)

1933, Baku Commissars, trial color perforated proof of 4k in red, perforation 13¾, printed on watermarked Borders and Rosettes paper, gummed, VF, SC #345 (Image)

1933, Baku Commissars, 20k purple, bottom sheet margin vertical pair with control cross and pinhole on the edge, imperforated at the bottom, full OG, NH, VF, a gorgeous item, SC #347 Pc (Image)

1934, Lenin Mausoleum and Ivan Fedorov, two complete sets of five and two respectively, nice centering for these difficult stamps, full OG, NH, VF, SC #360-64, 365-66 (Image)

1934, Sverdlov and Nogin, 10k and 15k, complete set of two, nicely centered for this difficult issue, full OG, hinged, VF, SC #367-68 (Image)

1934, First Decade without Lenin, 1k-30k, complete set of six, full OG (5k – expertly regummed), LH or hinged, VF, SC #381-86 (Image)

1935, Anti-War Propaganda issue, 5k-35k, complete set of five, the low value has enlarged top and bottom margins, post office fresh condition, full OG, NH, VF, SC #387-91 (Image)

1935, Anti-War Propaganda issue, 5k-35k, complete set of five, nicely centered, full OG, previously hinged, VF (Image)

1935, Moscow Spartacist Games, 1k-40k, complete set of ten, full OG, previously hinged, VF, SC #406-15 (Image)