1933, Revolutionary Heroes, 1k-5k, complete set of three and stamp of 3k with vertical position of watermark, which is scarce, full OG, NH, F/VF centering, Est. $150- $200 (Image)

1933, Order of the Red Banner, perforated (9 1/2) proof of 20k in black, red and yellow (issued colors), excellent quality item, full original uneven gum as always exists, NH, VF and undoubted a conditional rarity, Dr. E. Diena certificate, C.v.$8,000, Est. $4,000-$5,000 (Image)

1933, Baku Commissars, 20k purple, bottom left corner sheet margin single with perforation 14x14x10x14, a beautiful stamp in every respect, full OG, NH, VF and very scarce stamp with a selvage at appropriate side, Raritan Stamps guarantee, Est. $1,200-$1,500 (Image)

1933, Baku Commissars, 20k purple, right sheet margin vertical pair, an outstanding item, no gum as issued, NH, VF and very rare pair, Raritan Stamps guarantee, Est. $5,000-$6,000 (Image)

1934, Lenin Mausoleum, 5k brown and 10k slate blue, two imperforated stamps in vertical pairs, enlarged or balanced margins, full OG, NH, VF, Raritan Stamps guarantee, C.v. $4,200++, Est. $2,500-$3,000 (Image)

1934, Ivan Fedorov, the first Russian Printer, 20k carmine rose and 40k indigo, imperforated complete set of two in vertical pairs, full OG, NH, VF and scarce in sound condition, C.v. $4,000++, Est. $2,000-$2,500 (Image)

1934, Revolutionary Heroes, Sverdlov 10k ultramarine and Nogin 15k red, complete set of two, both with right sheet margins, excellent quality, full OG, NH, VF, C.v. $480, Est. $250-$300 (Image)

1934, 10th Anniversary of the Death of Lenin, imperforated photo-essay of 20k in black-and-white of slightly larger design differs from the issued stamp (People's March is going from behind of Mausoleum, on issued stamp - from the front of Mausoleum), nice and fresh, no gum as issued, VF and scarce, a common stamp is included, Est. $300-$350 (Image)

1935, Moscow Subway, 5k-20k, complete set of four, a beautiful unit, full OG, NH, VF, C.v. $825, Est. $450-$500 (Image)

1935, Moscow Subway, imperforated proof of 5k in orange (issued color), vertical imperforated pair with 1/2mm margin at top, normal margin at right and enlarged margins at bottom and left, full OG, NH or VLH (top stamp), VF and rare pair in issued color, some specialists considered proofs in issued colors as imperforated stamps, Est. $3,500-$4,500 (Image)

1935, four commemorative stamps, Radio Tower, Anti- War Propaganda, Subway and Zeppelin, paying 80k postage (apparently overfranked), used on registered cover in Moscow, mostly VF and nice franking, Est. $150- $200 (Image)

1935, Moscow Spartacist Games, 1k-40k, complete set of ten, blocks of four, 5k and 20k with sheet margins, unusually fresh and unfolded, nice quality in all respects, full OG, NH, VF and rare in this premium condition, this lot has been sold in our Auction #73 (2017), lot #784, for $8,000 plus appropriate commission, Est. $7,000-$8,000 (Image)

1935, Moscow Spartacist Games, Hurdling, 35k deep ultra and black brown, used on registered philatelic exchange cover from Moscow to Switzerland, exchange tax stamp 15k/70k of the 6th issue is affixed on reverse and tied by 8-line official cachet, Bern arrival is alongside, VF and very scarce franking, Est. $500-$600 (Image)

1935, Mikhail Kalinin, 20k black brown, horizontal imperforated pair, nice margins all around, full OG, NH, VF, Raritan Stamps guarantee, C.v. $4,200++, Est. $2,000 -$2,500 (Image)

1935, Revolutionary Heroes, M. Frunze, N. Bauman and S. Kirov, 2k-40k, imperforated complete set of three in horizontal pairs, nice margins and absolutely flawless quality as received from a Torgsin Store, Raritan Stamps guarantee, Est. $4,000-$5,000 (Image)