REMOVE

1. New York
2. machinery
3. Still, Clyfford

WHAT

1. Visual Works (hierarchy n … (1)
2. studies (1)

WHO

1. Clyfford Still; Still, Cl … (1)
2. Still, Clyfford (1)

WHEN

1. 1923 (1)
2. 1930 (1)
3. circa 1926 (1)