lithograph
(1972)
photo-etching and burnishing
(1970)
screenprint
(1919)
etching
(1974)
woodcut
(1967)
linocut
(2005)
etching and silkscreen
(2004)
(2007)
etching and hand-colouring
(1982)
hard-ground
(2006)
(1969-1971)
(1980-81)
(1981)
photo-etching