(1931)
(by 1978)
etching
(1989)
screenprint
(1963)
linocut
(1964-65)
(1965)
woodcut
(1986)
etching and aquatint
(1988)
lithograph
(1978)
(1985)
(1993)
hardground-etching and aquatint
(1996)
(1997)
(2005)
offset-lithograph
(1995)
(1841- 1855)
(1977-79)