(1930-31)
linocut
(1919)
etching
(1992)
(1955-56)
(1998)
(1957)
(2003)
etching and aquatint
(1966)
drypoint
(1928, after)
line-etching
(1920)
softground-etching with burnishing
(1967)
colour etching and aquatint
(1950s)
(1973)
lithograph
(c.1920)
woodcut
(1986)
screenprint
(1990)
(c.1928)