REMOVE

1. between 1948 and 1949

WHAT

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

WHERE

1. San Francisco, California (2)

WHO

1. Still, Clyfford (2)

WHEN

1. 1948 (2)
2. 1949 (2)