1933, Leningrad Philatelic Exhibition, red surcharges 30k on 15k brown black and 70k on 35k ultra, complete set of two, nicely centered, full OG, LH, VF, C.v. $325 (Image)

1933, Ethnographic issue, Buryats, perforated (L11½) trial color proof of 6k in brown lilac, phototype printing on watermarked Borders and Rosettes paper, repaired bottom right corner, still a collectible quality item, large part of OG, VF and rare, a common stamp is included, ex-Vadim Ustinovsky, Raritan Stamps opinion (Image)

1933, Ethnographic issue, Uzbeks, perforated (11½) proof of 15k in dark brown, size 50x23.5mm instead of 48x22.5mm for issued stamp, raster (square) printing instead of phototype on watermarked Borders and Rosettes paper, small thin from hinge removal, large part of OG, F/VF appearance of this rare proof, ex-Vadim Ustinovsky (Image)

1933, Ethnographic issue, 2k-30k, set of 15 values, each stamp with a part of perfin ''Obrazets'', a few have perforation trimmed by scissors at one side, fresh quality unit, full OG, previously hinged, VF and very rare assemblage, each one is guaranteed genuine, ex-Vadim Ustinovsky (Image)

1933, Revolutionary Heroes, 1k-5k, complete set of three, each stamp with a part of perfin ''Obrazets'', stamp of 5k has perforation trimmed by scissors at the top and bottom, full OG, LH or previously hinged, VF and very rare set from the Postal Archives, ex-Vadim Ustinovsky (Image)

1933, Order of the Red Banner, 20k multicolored, a part of perfin ''Obrazets'' at the bottom, perforation trimmed by scissors on the left, full OG, NH, VF, authenticity guaranteed, ex-Vadim Ustinovsky (Image)

1933, Baku Commissars, 4k-40k, complete set of five, fresh condition, full OG, VLH, VF, C.v. $188

1933, Baku Commissars, 4k-40k, complete set of five, each stamp with partial perfin ''Obrazets'', mainly full original gum (40k – without gum), 35k is NH, 4k-20k – LH, VF and very rare in complete set, all guaranteed genuine, ex-Vadim Ustinovsky (Image)

1933, Baku Commissars, 5k gray black, left sheet margin horizontal strip of three, imperforated on the left and between stamps, Rostov (Yaroslavl' Gub.) cancellation, fresh, VF, one of the most rare perforation error from 1930's, which is known only used (Image)

1933, Baku Commissars, 5k gray black, two CTO singles – one with shifted perforation to the top (larger then normal for 11mm), the other one has bottom perforation shifted to the design, full original uneven gum, VF, a common stamp is scanned for comparison (not included in the lot) (Image)

1933, Baku Commissars, 35k ultra, top sheet margin single imperforated at top, minor abrasion at right, full original gum with tiny trace of black ink, NH, mainly VF and very rare perf error on the ''key'' value (Image)

1934, Ivan Fedorov, 20k carmine rose, four-side margins imperforated single, full OG, previously hinged, VF, C.v. $675 (Image)

1934, Revolutionary Heroes, Sverdlov 10k ultra and Nogin 15k red, complete set of two, full OG, NH (10k) or hinged, F/VF, C.v. $255 (Image)

1934, Dmitry I. Mendeleyev, 5k-20k, complete set of four, nicely centered, full OG, LH or previously hinged, VF, C.v. $284 (Image)

1934, First Decade without Lenin, 1k-30k, complete set of six, full OG, LH, VF, C.v. $350 (Image)

1935, five commemorative stamps, including M. Gorky, I. Fedorov, Y. Sverdlov in pair and V. Lenin of 1934 used on advertising (pig breeding) envelope from Baku to Tiflis, addressed to Joseph Kaukhchishvili (philatelic official in Caucasus), all appropriate markings and Tiflis machine arrival on reverse, mostly VF (Image)

1935, Anti-War Propaganda issue, 5k-35k, complete set of five, bold colors and nice centering, full OG, mainly LH, VF, C.v. $547 (Image)

1935, Moscow Subway, 5k-20k, complete set of four, perfect centering, full OG, LH or previously hinged, VF, C.v. $407 (Image)

1935, Moscow Spartakiad, 1k-40k, complete set of ten, in addition stamp of 5k reddish purple instead of purple and with clear and firm background, full OG, NH (common 5k is VLH), VF, C.v. $957 (Image)

1937, Alexander Pushkin, 10k-1r, complete set of six, perforation L12½, nice and post office fresh, full OG, NH, VF, C.v. $255 (Image)

1937, Congress of Soviet Architects, 3k-50k, complete set of eight, full OG, NH, mostly VF, C.v. $232 (Image)

1937, Congress of Soviet Architects, 3k-50k, complete set of eight in unfolded blocks of four, most with sheet margins, 10k and 15k with occasional gum spots mentioned for accuracy only, full OG, NH, mostly VF (Image)

1937 (June 20), Congress of Soviet Architects, 10k, 15k, 30k and 50k, four ''key'' values of the set used on illustrated (Alexander Pushkin Exhibition) registered cover from the Congress, tied by special date stamp, Moscow arrival markings, VF (Image)

1937, definitive issue, farm worked 4k claret, printed on paper without watermark, unfolded block of four, minor usual offset on reverse, full OG, NH, VF, C.v. $500++ (Image)

1939, definitive issue, factory worker 30k claret, horizontal imperforated pair, balanced margins, full OG, NH or very light trace of hinge on left stamp, VF, C.v. $1,550 (Image)