linocut
(25 February 1937)
(1961)
etching and sugarlift aquatint
etching
(1971)
wood-engraving
(1948)
screenprint
(1995, November)
lithograph
(1996, February)
(1976)
aquatint and deep etching
(1989)
(1996)
engraved lino block
engraved lino block for green image