random objectivation
1963
random structured semiotic field work
1971
rasenstück
1989
sailboat
mid 1960s
silent singing
1994
stereopsis
1959
study
1955
temporary mural
1979
there
title unknown
title unknown
1972-73
title unknown
mid 1960s
title unknown
mid 1960s
title unknown
mid 1960s
title unknown
1970
two
untitled (1960)
1960
untitled (1960-1962)
1960-1962
untitled (Cohen, Harold)
untitled (Cohen, Harold, 1986)
1986
untitled (Konstruktion)
ca. 1950
untitled (Leonardo 2)
1968
untitled (ca. 1960-1962)
untitled (sine curve 1)
ca. 1969
untitled (sine curve 2)
ca. 1969
untitled (sine curve 3)
ca. 1969
untitled (sine curve 4)
ca. 1969
untitled
1975
mid 1960s