(1933)
wood-engraving
((1933))
(1926)
etching
((1936))
(1943)
etching and aquatint
(1927)
((1938))
process block
(1925)
(1924)
((1927))
((1934))
((1931))
aquatint and etching
(1931-33)
woodcut
((1930))