((1968-69))
etching and aquatint
(1918)
((1962-63))
((1962))
etching
(1955-56)
etching and drypoint
(1937)
linocut
(1952)
lithograph
engraved lino block
(c.1933)
(c.1945)
monotype
(1981)
aquatint
((1955))
drypoint