(1928)
drypoint on copper plate
((1926))
line-etching
(1947)
lithograph
(1998)
woodcut
(1973-74)
aquatint
(1952)
linocut
etching
(1983)
(1937)
(1936)
(1985)
(1935)
(1961)
open-bite and brush-bite etching