1924, ''Fokker 111'', surcharged issue, 5k/3r, 10k/5r and 20k/10r, three values with a part of perfin ''Obrazets'', full OG, LH, VF, SC #59-60, 62 (Image)

1924, ''Fokker 111'', black surcharge 10k on 5r green, wide ''5'' variety, minor usual gum waves, full OG, VLH, VF, Soviet Philatelic guarantee hs, SC #60 II (Image)

1927, International Air Post Conference, 10k and 15k, complete set of two, each stamp with part of perfin ''Obrazets'', perforation cuts by scissors, full OG, VLH, F/VF and scarce, SC #185-86 (Image)

1930, Zeppelin issue, 40k dark blue and 80k carmine, imperforated complete set of two, both are bottom sheet margin examples, full OG (slightly uneven on 40k value), NH, VF and scarce, SC #0256-57 (Image)

1931, Airship over the Dnieper Dam, 15k gray blue, litho printing, perforation L12½, right sheet margin block of four with double vertical perforation between stamps, fresh, full original slightly dried gum, NH or LH, VF and scarce, SC #272 Pa (Image)

1932, Airship over the Dnieper Dam, imperforated lithographed proof of engraved stamp of 15k in blue, balanced margins, neat postal cancellation at the top, rather fresh, VF and extremely rare, this proof is close by color, but has completely different shading and lettering of stamp issued in 1931, SC #301 (Image)

1932, International Polar Year, 50k carmine and 1r olive green, complete set of two with perforation 12½, in addition stamp of 1r with perforation 10½, full OG, very light traces of hinge, VF, SC #297-98, 298A (Image)

1934, Civil Aviation, 50k black blue, top left corner sheet margin single printed on paper without watermark, full OG, NH, VF, a gorgeous single, SC #353 (Image)

1934, Ilya Usyskin, 5k brown violet, perforation L14, left sheet margin single, full OG, NH (trace of hinge on margin), VF, SC #373A (Image)

1935, Moscow - San Francisco Flight, red surcharge 1r on 10k dark brown, vertical pair, top stamp with small ''f'' variety of surcharge, positions 9/14 of 25-stamp setting, perfect condition, full OG, NH, VF and scarce se-tenant pair, SC #420 Ka/420, 900,000? (Image)

1949, Air Routes and Transport Airplanes, 1r black, ultra, gray and red, map of the USSR (gray color) shifted to the top left for 3mm, fresh, full OG, previously hinged, VF, SC #1369 var (Image)

1921, Imperial stationery postcard with black surcharge 30k on 3k red, uprated by double violet framed overprint on 20k blue and red, sent from Alexandropol to Batum, all appropriate markings, arrival ds, VF and rare, expertized by Romeko (Image)

1920, inverted black framed overprint over black surcharge 60k on 1k orange and black framed overprint on 1r dark brown, pale brown and orange, three stamps (a single and horizontal pair) used on registered cover from Yerevan to Tiflis, postmarked on arrival, VF (Image)

1919, framed violet overprint (size 14mm) on 1r dark brown, pale brown and orange, imperforated block of four, top right stamp without overprint, full OG, previously hinged, VF and scarce (Image)

1919, framed overprint (size 14mm) on 1r dark brown, pale brown and orange, se-tenant horizontal pair, left stamp with black, right stamp with violet overprint, full OG, previously hinged, VF (Image)

1919, framed black or violet overprint (9mm) on 1r, two imperforated singles (one with inverted black overprint) and horizontal pair with ''V'' labels at sides, in addition framed black inverted overprint (12mm) on imperforated 3.50r, all stamps and labels with offset on gum side, strip has small thin on left label, otherwise fresh, full OG, NH or LH, VF and an eye-catching group (Image)

1919, violet unframed overprint on 1r dark brown, pale brown and orange, imperforated block of ten (5x2), stamps of the top row with size of overprint 6.5mm, while bottom ones - 9.2mm, crease on the right is affecting two stamps, otherwise fresh, full OG, NH or previously hinged (3), VF and scarce multiple (Image)

1919, 3,50r maroon and green, horizontal se-tenant pair, right stamp with unframed black overprint (9.2mm), while right one with framed violet overprint (14mm), full OG, previously hinged, VF and scarce commercial item (Image)

1919, 5r dark blue, green and pale blue, horizontal imperforated se-tenant pair, right stamp with unframed black overprint (9.2mm), right one with framed violet overprint (14mm), full OG, hinged, VF (Image)

1919, 7r green and rose, perforation 13½, horizontal se- tenant pair, right stamp with unframed black overprint (9.2mm), right one with framed violet overprint (14mm), full OG, previously hinged, VF (Image)

1919, unframed black overprint (9.2mm) on 10r scarlet, yellow and gray, perforated horizontal pair, right stamp with double overprint, full OG, LH, mostly VF (Image)

1919, 10r scarlet, yellow and gray, horizontal se-tenant pair, right stamp with unframed black overprint (9.2mm), right one with framed violet overprint (14mm), full OG, previously hinged, VF (Image)

1919, double unframed violet overprint (6.5mm) on 10r scarlet, yellow and gray, nicely centered perforated single, full OG, LH, VF (Image)

1921, black surcharge 5r on two Romanov Dynasty stamps, used on cover from Yerevan to Tiflis, address is partly erased, postmarked on arrival, F/VF (Image)

1919, second monogram black surcharge 100r on 5r, a single with ''V'' label on the left with perforation 12½, Yerevan CTO cancellation, VF, expertized by Romeko and A. Rosselevitch, C.v. $150 (Image)