(1946)
wood-engraving
(2000)
etching
(2005)
(1962)
woodcut
(1948)
line-engraving
(1936)
linocut
((1955))
lithograph
(1959)
linocut and woodcut
(1965)
(c.1954)
photo-lithograph
((1930s))
(1920-40)
(c.1958)
colour trandparency
(c.2006)
etching; gold leaf
(1967)
etching and aquatint