(1988)
lithograph
(1967)
woodcut
(1979)
screenprint
(1977)
wood-engraving
(1981)
etching
(1963)
(1960)
(1969)
linocut
(c.1930)
(1970)
(1980)
(1976)
etching and aquatint
(1940s)
(c.1996)
print?