(1972)
(1967)
colour etching and aquatint
(1970)
etching and aquatint
(1971)
softground-etching and aquatint
(1974)
etched magnesium plate
(1969)
(c.1942)
photo-lithograph
(1962)
screenprint
(July 1992)
photo-etching and aquatint
(1959)
woodcut
(1921)
(1937)
etching
(1984)