REMOVE

1. windows
2. rock
3. rubbish
4. sky
5. soil
6. utility poles
7. landscapes (representations)

WHAT

1. black-and-white film (1)
2. buildings (structures) (1)
3. bushes (1)
4. exterior views (1)
5. farms (1)
6. fences (1)
7. fields (land) (1)
8. freight cars (1)
9. grain elevators (1)
10. paths (1)
11. plants (1)
12. platforms (general) (1)
13. railroads (1)
14. roads (1)
15. signs (declatory or adver … (1)
16. trains (vehicle groupings … (1)
17. Visual Works (hierarchy n … (1)

WHERE

1. Killam, Alberta, Canada (1)

WHO

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

WHEN

1. 1920 (1)
2. 1940 (1)
3. between 1920 - 1940 (1)