REMOVE

1. machinery
2. soil
3. rubbish
4. utility poles

WHAT

1. Visual Works (hierarchy n … (1)
2. artists (visual artists) (1)
3. black-and-white film (1)
4. coats (garments) (1)
5. eyeglasses (1)

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WHERE

1. San Francisco, California (1)

WHEN

1. 1946 (1)