1914 10k Helmet essay in black, plate proof on card, v.f. (Image)

Est.US$500

1921 2,250+2,250r green, pelure paper, sheetlet of four, l.h. in margin, stamps n.h., some creases and natural gum loss at bottom (catalogued as singles) cat. $1160 (Cat No. B14a) (Image)

Cat. $1160, Est.US$1,000

1921 Volga Famine Relief, 2,250r dark blue, printed over the 250r Science and Arts violet, miscut and inverted, v.f. and extremely rare (Cat No. B17var) (Image)

Est.US$1,500

1923 Volga Famine surcharges inverted, six different, first one used, others l.h. or n.h., signed Romeko, cat. $850 (Cat No. B18a-23a) (Image)

Cat. $850, Est.US$500

1923 100r+100r on 70k red brown, double surcharge, bottom sheet margin block of four, one l.h., others n.h., v.f., scarce multiple, cat. $1100 (Cat No. B18b) (Image)

Cat. $1100, Est.US$400

1923 250r+250r on 35k blue, surcharge printed in reverse, n.h., fine and most unusual variety, signed Romeko (Cat No. B21var) (Image)

Est.US$250