(1987, May)
linocut
(1954-55)
woodcut
(1958)
(1996)
lithograph
(1966)
screenprint
(1928, before)
drypoint and line-etching
(1962)
sugar aquatint
(1954)
hardground-etching
(1970)
etching and aquatint
plaster-cut
(c.1987)
etching
(1955-56)
(1985)
(1926)
(1996, November)
(1971)
softground-etching and aquatint
(1965-66)