(1988)
linocut
(1928)
line-etching
(1920)
monotype
(2003)
stencil
(1981-1982)
offset-lithograph
(1985)
photocopy; hand-coloured
(1975)
(1981)
lithograph
(1969)
etching
(1992, April)
photo-lithograph
etching and aquatint
(1980)
(1997)
pencil drawing