REMOVE

1. art critics
2. 1957 - 1959
3. 1957
4. 1959

WHAT

1. Visual works (hierarchy n … (2)
2. abstraction (2)
3. gray (2)
4. oil pastels (2)
5. blue (1)

WHERE

1. New York, New York (2)

WHO

1. Still, Clyfford (2)

WHEN

1. 1956 (2)