Robert Nickle: Liste der werke
- Untitled, 1961
- Untitled, 1962
- Untitled, 1963
- B5, 1964
- Untitled (black on orange), 1969
- Untitled, 1969
- Untitled, 1973
- Untitled, 1974
- Untitled, 1975
- Untitled (Enclosed), 1978
- Untitled, 1979
- Untitled Collage, 1979
- Untitled, 1979