Collections and Large Lots. SOUVENIR SHEETS - NICE GROUP: 1937-62, 25 items, starting with Pushkin, Congress of Architects and Aviation Exhibition of 1937, including Stalin on cream and white paper, perf Lenin Mausoleum (CTO), North Pole surcharged sheet of 1962 and many others, occasional flaws possible, F/VF, Est. $400-$500 (Image)

Collections and Large Lots. PERFORATION ERRORS: 1937-48, 10 fantails (imperforate at margin side), two 50k Ukraine is a former horizontal pair, including Dzerzhinsky 10k and 20k, Sanatorium, Zhukovsky and Air Fighter imperforated at right, ''Rear to Front'' imperf at left and several others, unused with full OG (2), CTO or postally used (3), F/VF, Est. $600-$800 (Image)

Collections and Large Lots. GROUP OF PRINTING ERRORS: 1946-56, six items, including a spot over CCCP on Medal of 60k, 25th Anniversary of stamps - 15k with short ''P'' in ''CCCP'' and 60k with broken ''O'' and third ''C'' in ''POCHTA CCCP'', Arms of1947 with joined ''CC'' in ''CCCP'' in pair and etc., nice and fresh, full OG, NH or LH (1), VF, Est. $150-$200 (Image)

Collections and Large Lots. SELECTION OF MAINLY PERFORATION VARIETIES: 1955-58, Moscow University 40k, Youth Festival 40k, Trade Union Congress 40k and Crimea Observatory 40k, all with perforation L12½, in addition both types of M. Aivazov, full OG, NH, VF and guaranteed genuine, Est. $150-$200 (Image)

Collections and Large Lots. THREE VARIETIES OF DEFINITIVE STAMPS: 1960-66, miner 15k black, size 14x21mm, re-issue in top left corner sheet margin strip of three with control numbers on top selvage, Arms of 1961 4k red, vertical pair printed from damaged plates, resulting in strongly overinked denomination and Flag, Arms of 1966 4k red, a single with double impression, all with full OG, NH, VF, Est. $100-$150 (Image)

Collections and Large Lots. VALUABLE POSTAL HISTORY GROUP OF: 15 items 1924-56, representing early Flights Moscow-Koenigsberg-Berlin- Paris, Vladivostok-Shanghai franked by first air post issue, Special Delivery cover to Hamburg franked by 12 stamps, Perekop imperforated set on cover to Netherlands, other nicely franked items, in addition Belgium Balloon Flight cover of 1932, minor flaws mentioned, still F/VF, Est. $400-$500 (Image)

Great Purge (Great Terror) Correspondences. 1937-41, two covers from prisoners of Toropets (Kalinin Obl.) Correctional Facility No.12 and Tavda (Sverdlovsk Obl.) Labor Camp No.239/16, addressed to the Attorney General Vyshinsky and Minister of Internal Affairs Beria respectively, minor archival flaws, still F/VF, Est. $150-$200 (Image)

Large Die Proofs. 1970, Lenin, stamp of 50k in dark red from the souvenir sheet EXPO' 70 International Exhibition, mirrored text at bottom, printer's markings at four sides, size 89x118mm, minor violet ink splashes, still VF and rare, Est. $300-$400 (Image)

Large Die Proofs. 1976, Dmitry Shostakovich, Composer, 6k in dark violet blue, artist V. Koval, engraver V. Smirnov, printer's markings at four sides, size 89x119mm, no gum as issued, VF, Est. $400-$500 (Image)

Large Die Proofs. 1978, Leo Tolstoy, 4k in red (issued stamp in slate green), artist I. Martynov, engraver I. Mokrousov, size 86x120mm, no gum as issued, VF and probably unique in this color, Est. $500-$600 (Image)

Large Die Proofs. 1978, Stepan Shaumyan, Baku Commissar, 4k in bright green (issued stamp in slate green), artist V. Sorokin, engraver L. Mayorova, printer's markings at four sides, size 88x120mm, no gum as issued, VF and very rare, Est. $400-$500 (Image)

Large Die Proofs. 1980, Alexander Suvorov, Generalissimo, 4k in dark blue (issued stamp in slate blue), artist I. Filippov, engraver L. Mayorova, size 90x105mm, no gum as issued, VF and rare, Est. $400-$500 (Image)

Large Die Proofs. 1980, definitive issue, Soviet Flag, 3k in red (issued color), artist A. Kalashnikov, engravers A. Tkachenko and V. Sayapin, printer's markings at sides, size 87x120mm, no gum, VF, Est. $300-$400 (Image)

Large Die Proofs. 1981, Sergey Prokofiev, Composer, 4k in grey violet (issued color), artist V. Nikitin, engraver M. Silyanova, size 91x119mm, no gum as issued, VF and rare, Est. $400 -$500 (Image)

Large Die Proofs. 1982, Vasily Solovyov-Sedoi, Composer, 4k in brown (close to issued color), artist P. Bendel, printer's markings at sides, size 100x117mm, full OG with trace of hinges, VF and very rare, Est.$400-$500 (Image)

Large Die Proofs. 1983, Aram Khachaturyan, Composer, 4k in violet brown (close to issued color), artist V. Koval, printer's markings at sides, size 120x100mm, no gum as issued, VF and rare, Est.$400-$500 (Image)

1924, Lenin Mourning issue, 3k-20k, imperforated and perforated complete sets of four, first one with wide frame in horizontal pairs, full OG, NH, mostly VF, Est. $100-$150 (Image)

1923-25, definitive issues, 1k-1r, imperforated set of 10, litho printing, 3k, 4k, 10k, imperforated stamps of typo printing on paper without watermark, 1k-5r, perforated complete set of 22 on watermarked paper, full OG, NH or LH (30%), VF, Est. $250-$300 (Image)

1924-25, definitive issue, worker 20k gray green, typo printing, top left corner sheet margin horizontal pair with a part of control inscription, invalidating perforation across the design, perfect quality, full OG, NH, VF and a spectacular item, Est. $500-$600 (Image)

1924-25, definitive issue, worker 2r green and rose, typo printing on thinned grayish paper, three-side margin block of ten (5x2) with double impression, double control lines at bottom selvage, two horizontal invalidating perforation lines across the design, full OG, NH, VF, Est. $600-$800 (Image)

1925, Lenin Mausoleum, 7k-40k, imperforated and perforated complete sets of four, full OG, NH (40k imperf, 7k, 14k and 40k perf) or VLH, F/VF, Est. $100-$150 (Image)

1925, Lenin Mausoleum, essay of unaccepted design for 40k in violet brown, printed on watermarked Borders and Rosettes paper, full OG, NH, VF, Est. $600-$800 (Image)

1925, definitive issue, soldier 3r dark brown and green, two stamps with perforation 12½ printed on watermarked Borders and Rosettes paper, types I and II, fresh quality, full OG, previously hinged, VF, Est. $300-$400 (Image)

1925, Aleksandr Popov, imperforated proof of 7k in red, printed on thick paper with text on reverse, used in 1949 on registered cover from Moscow to United Kingdom together with two other values (J. Barry's correspondence), British blue cross for registered mailing upon arrival, F/VF and rare, this lot has been sold for $325 plus appropriate commission on our Auction #91, unfortunately the customer refused to pay for it, Est. $300-$400 (Image)

1926, definitive issue, 7k-5r, imperforated complete set of eight on improved white wove paper, 7k-2r with sheet margins, full OG, NH, VF, SC #0120-27, Est. $100 -$150 (Image)