(1966)
linocut
(1960)
(1928)
etching
(2003)
stencil
(1806-13)
engraving
(c.1861)
photo-lithograph
(c.1860)
(1983)
screenprint
(1944)
(1981)
((1962-63))
etching and aquatint
(c.1980)
((1971))
photocopy
(c.1985)
off-set lithograph
(1984)
(1985)
offset-lithograph
(1972-73)