Czechoslovakia
The following six lots of die proofs were all engraved by Josef Herçik and have been signed by him.
Proof 1966 "Guernica" after Picasso commemorating 30th Anniv. of International Brigade in Spain, 60h. in black on glazed card (128x93mm.)
Details
Proof 1966 "Guernica" after Picasso commemorating 30th Anniv. of International Brigade in Spain, 60h. in black on glazed card (128x93mm.)