(1930)
etching
(January 1963)
lithograph worked in touche
(by 1937)
etching and aquatint
(1963)
((1962-63))
(1973)
offset-lithograph
(2000)
(1932)
linocut
(1894)
drypoint
pencil drawing
(1972)
(1990)
lithograph
(1950s-60s)