(1986)
screenprint
(1961)
engraving and drypoint
(1962)
aquatint
(1958-61)
flat biting over lithographic crayon
(1967)
relief-etching
(1999)
screenprint and embossing
(1999, October)
(1978)
etching and aquatint; letterpress text
(1960)
drypoint
(2000)
linocut
(by 1975)
photo-screenprint
offset-lithograph
(2006)
etching
(1934)
lithograph
(2005, April)