1959 Plzen Exhibition, 30h,1k and 1.60k, three different die proofs in black, v.f., signed Karasek (Cat No. 914P,916P,917P) (Image)

Est.US$200

1962 Praga Exhibition, 1.40kr "Children Dancing Around a Tree", six die proofs in different colors, various stages of completion, fine-v.f., probably unique group, signed Karasek (Cat No. 1132P) (Image)

Est.US$400

1962 30h Cosmonaut and Worker, three die proofs, various colors and stages of engraving, one with guide line markings, fine-v.f. (Cat No. 1139P) (Image)

Est.US$250

1966 Space Achievement, 1k Satellite and Binary Code, six different die proofs, various stages of completion, v.f. and scarce lot (Cat No. 1426P) (Image)

Est.US$500

1970 Art, three die proofs showing diff. stages of completion, v.f., signed Karasek (Cat No. 1689P) (Image)

Est.US$250

1979 First Anniversary of Joint Czechoslovak-Soviet Space Flight, 1.60k (3) and 2k (4), total of seven die proofs in various colors, v.f., probably unique (Cat No. 2223,2224P) (Image)

Est.US$750

1930 50h green, two imperforate sheet margin panes of 20, also a large imperforate sheet of 110, tete-beche with 30 printed in reverse, also the 50 middle stamps with double impression/one inverted, quite spectacular. In addition, there are two panes of 50 of 3kr red violet, fine-v.f. (total of 310 pieces) (Cat No. C10,13P) (Image)

Est.US$1,000

1934 3rd SAF to Argentina, franked on both sides, v.f. (Image)

Est.US$400

1936 Hindenburg Flight, single correspondence of seven, mostly diff. covers addressed to Paterson, N.J., various frankings, also 1933 flown cover from Prague to Brazil, mostly fine-v.f. (Image)

Est.US$1,000