(1951)
drypoint and etching
(1960)
linocut
(c.1933)
(1958)
lithograph
(c.1955)
(c.1934)
(1955)
(31 May 1991)
etching
(1999, March)
(1950)
stencil
(1986)
photocopy
(1992)
(1993)
(1999, February)
(1992, December)
(1999, November)
woodcut