REMOVE

1. automobiles
2. exterior views
3. barriers

WHAT

1. Visual Works (hierarchy n … (2)
2. black-and-white film (2)

More 

WHERE

1. Aiken, South Carolina (1)
2. New Windsor, Maryland (1)

WHO

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

WHEN

1. 1966 (1)
2. 1967 (1)