(1940s)
aquatint
(1930s)
drypoint
(1931-33)
woodcut
(1942)
engraved-metal
(1934)
linocut
(1933)
((1938))
process block
etching and aquatint
(1928)
etching
((1934))
wood-engraving
((1922))
(1909)
engraving
(1925)
((1935))