(1963)
etching
(1969)
lithograph
(1954-55)
(1986)
photo-screenprint
(1989)
(1996)
(1959)
(1999)
photocopy
(2003)
drypoint
(1987, May)
linocut
woodcut
(1958)
(1966)
screenprint
(1928, before)
drypoint and line-etching