(1980)
linocut
(1983)
woodcut
(1987)
drypoint
(c.1948)
(1977)
(1947)
line-engraving
((1955))
etching
(1953)
lithograph
(1974)
electric hand engraver
((1953))
colour monotype
softground etching
(1925)
(1936)
chalk drawing
drawing
drawing in sepia
(1960-70)