12 (1977)
33 (1976)
Drawing No. 3 (1960)
Drawing No. 4 (1960)
Interval (1967)
Untitled (ca. 1955)
Untitled (1960)
Untitled (1962)
Untitled (not dated)
Double Red (1963)
Japanese Composition (1958)
Untitled (1964)