1931 50k gray blue (error of color), small h.r., incredibly fresh, v.f., cat. $500 (Cat No. C23a) (Image)

Cat. $500, Est.US$200

1934 20k Fedosenko, perf. 13 3/4, well centered, large margins all around, small h.r., light vertical crease and tiny natural inclusion in right margin, nevertheless a fresh and v.f. example of this undervalued rarity, with 2004 Raritan guarantee, cat. $10000 (Cat No. C52a) (Image)

Cat. $10000, Est.US$5,000

1935 Chelyuskin Rescue, set of ten, l.h. or h.r., fresh, fine-v.f., cat. $1032 (Cat No. C58-67) (Image)

Cat. $1032, Est.US$300

1935 1r on 10k dark brown, Moscow-San Francisco (Levanevsky), small h.r., fresh, v.f., signed Soviet Philatelic Association, cat. $500 (Cat No. C68) (Image)

Cat. $500, Est.US$200

1922 1,200m on 2.25r Type I, l.h., v.f., signed Roumet, Mikulski, etc., with 2007 Mandrovski certificate, cat. $1950 (Cat No. CO7) (Image)

Cat. $1950, Est.US$750

1922 1,200m on 2.25r Type III, position 15, right sheet margin single, h.r., v.f., signed Goznak, Kessler, cat. $1950 (Cat No. CO7) (Image)

Cat. $1950, Est.US$750