REMOVE

1. houses
2. bushes
3. sky
4. construction sites
5. buildings (structures)
6. construction equipment

WHAT

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

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WHERE

1. Westlock, Alberta, Canada (1)

WHEN

1. 1946 (1)
2. ca. 1946 (1)