(1964)
drypoint
(1992)
etching
(1991)
(1988)
aquatint
(1958)
((1955))
linocut
(by 1944)
(1950s)
etching and drypoint
(c.1950)
dyeline
(1912)
etching and foul biting
photocopy
(c.1947)
screenprint
(1965)
monotype
(1970s)
woodcut
(1968)
(1975)