(1927–1988) American | French | Organisation
Paris 1927-1940 and 1950-1980; New York 1940- 1955.
Print workshop
(1947)
line-engraving
(1950)
etching
(1957)
etching and drypoint
((1953))
etching and aquatint
(1953)
(1948)
(1949)
engraving
(c.1950)
(1951)
etching and softground-etching
(1967)
photo-etching