(1940s)
etching
(1938)
wood-engraving
((1938))
((1934))
engraving
(1932)
line-block
(c.1932)
linocut
(c.1926)
((1930s))
(c.1930)
process block
(1933, June)
((1933))
(1931)
(1932, December)