REMOVE

1. hats
2. wheels (components)
3. hills
4. rubbish
5. automobiles
6. black-and-white film

WHAT

1. Visual Works (hierarchy n … (1)
2. buildings (structures) (1)
3. bushes (1)
4. color film (film) (1)

More 

WHERE

1. New Windsor, Maryland (1)

WHEN

1. 1971 (1)
2. ca. 1971 (1)