1922-24 Airplanes, surcharges, etc., blocks of four, n.h., v.f. (Zverev 1,425) (Cat No. C1,2-4,5-9) (Image)

Est.$500

1924 10k on 5r green, basic stamp wide "5", two distinct paper and shade varieties, l.h. or h.r., v.f., signed Romeko, Maslowski, etc., cat. $2500 (Cat No. C7a) (Image)

Cat. $2500, Est.$1,500

1924 surcharged 10k on 5r green type II, basic stamp wide "5", used, v.f., cat. $700 (Cat No. C7a) (Image)

Cat. $700, Est.$500

1924 15k on 1r red brown, sheet margin single, l.h., v.f., signed Roumet, etc. (Zverev $2,000) cat. $1400 (Cat No. C8a) (Image)

Cat. $1400, Est.$750

1927 First International Aviation Conference, 10k, two plate flaws, one position 26 with defective "7" of "1927", the other position 66, with white spot above "A" of "Avio", l.h., fine-v.f. (Zverev $700) (Cat No. C10var) (Image)

Est.$300

1930 Five Years in Four Graf Zeppelin, blocks of four, n.h., some wrinkles, fine-v.f. (Zverev $2,500) (Cat No. C12-13) (Image)

Est.$750

1931 50k gray blue (error), left sheet margin block of four, exceptionally well centered to issue, n.h. and post office fresh, imperceptible, natural gum skips at left, v.f. and scarce block of four (Zverev $25,000) (Cat No. C23a) (Image)

Est.$7,500

1932 15k gray black, imperforate horizontal pair, l.h., v.f., signed Sanabria, Stolow, rare imperforate variety, only 100 printed (Zverev $15,000) (Cat No. C25var) (Image)

Est.$5,000

1933 5k ultramarine, horizontal pair imperf. between, central Leningrad 1.11.33 cds, v.f., cat. $2500 (Cat No. C37b) (Image)

Cat. $2500, Est.$1,500

1934 Civil Aviation, 20k carmine, perforated 13 3/4:10 1/4:13 3/4:13 3/4, right sheet margin example, canceled to order, fresh, diagonal crease, still v.f. appearance, rare mixed perforation variety (Zverev $9,000) (Cat No. C42var) (Image)

Est.$2,500

1935 1r on 10k brown, Moscow-San Francisco surcharge, raised period (positions 21/25), l.h., v.f., cat. $725 (Cat No. C68) (Image)

Cat. $725, Est.$250

1935 Moscow-San Francisco surcharge, "M" of "Moscow" defective, stop after "Ceb" shifted up, v.f., signed Goznak (Zagorsky 420Ke) (Cat No. C68) (Image)

Est.$500

1935 1r on 10k dark brown (Levanevsky), Moscow-San Francisco, red overprint and surcharge, horizontal pair, positions 21-22, l.h., v.f. (Cat No. C68) (Image)

Est.$750

1935 Moscow-San Francisco, 1r surcharge, small "f", never hinged but with little gum loss at top, slight toning at right, still v.f., signed Goznak, Roig, etc. (catalogue value for hinged), cat. $1800 (Cat No. C68b) (Image)

Cat. $1800, Est.$750

1935 Moscow-San Francisco, 1r surcharge, small "f", used on piece, v.f., scarce, cat. $2000 (Cat No. C68b) (Image)

Cat. $2000, Est.$750

1937 Jubilee Aviation Exhibition, 50k vertical pair imperf. between, used, v.f. (Zverev $3,000) (Cat No. C73var) (Image)

Est.$750

1961 6k on 60k blue, block of four, upper right stamp missing "6" variety, n.h., v.f., with Robineau certificate (Zagorsky 2564Ta) (Cat No. C99var) (Image)

Est.$1,500