REMOVE

1. roads
2. windows
3. workers
4. boys
5. hills
6. barriers

WHAT

1. art schools (institutions … (1)
2. automobiles (1)
3. cityscapes (representatio … (1)
4. color film (film) (1)
5. doors (1)
6. exterior views (1)
7. streets (1)
8. towers (building division … (1)
9. trees (1)
10. utility poles (1)
11. Visual Works (hierarchy n … (1)

WHERE

1. San Francisco, California (1)

WHO

1. Still, Patricia (1)

WHEN

1. 1971 (1)
2. circa 1971 March (1)