random objectivation V68 - 70
1968
random objectivation V68 - 71
1968
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