(1930)
etching
(1951)
drypoint and etching
(1960)
linocut
(c.1953)
etching and aquatint
(1953)
(1956)
lithograph
(1984)
(1986)
etching and mezzotint
(c.1933)
(1958)
(1954)
(1959)
(c.1994)
woodblock
(1961)
(1992)
(31 May 1991)
(1999, March)
(1950)
stencil