(1912)
etched copper plate
(1952 ?)
lithograph
engraved lino block
(1967)
etching and aquatint
((1955))
linocut
woodcut
(1966)
(1957)
screenprint
(1951)
etching
(c.1966)
(1962)
(1977 - 1978)
(c.1953)