(1848)
etching
(1999)
etching and aquatint
softground-etching and aquatint
(1987)
linocut
(1959)
screenprint
(1948)
lithograph
monotype
(c.1920)
(2003)
stencil
laser printed in black ink
(1993)
(1989)
offset-lithograph
Be still earth
Be still earth...
(by 1934)
wood-engraving
(1991)
photo-lithograph
(1982)
photo-linocut
((1948))