(1991)
etching
(1999)
sugar-lift etching
(1964)
drypoint
(1992)
(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