(1978)
etching and aquatint
(1963)
(September 1974)
screenprint
(1959)
printed in colour from two blocks
(1969)
linocut
(1973)
lithograph
(1966)
etching
lithoraph
(2004)
(1960s)
etching and aquatint printed in black ink
(1954-55)
(1986)
(1992, October)
(1987)
offset-lithograph
((1931))
etching and awuatint printed in black ink
(December 1975 (dated))