REMOVE

1. horizon line
2. sidewalks
3. sky
4. fences

WHAT

1. automobiles (1)
2. buildings (structures) (1)
3. exterior views (1)
4. hills (1)
5. landscapes (representatio … (1)
6. men (male humans) (1)
7. pipes (conduits) (1)
8. roads (1)
9. signs (declatory or adver … (1)
10. silver gelatin (1)
11. storefronts (1)
12. townscapes (representatio … (1)
13. utility poles (1)
14. Visual Works (hierarchy n … (1)
15. women (1)

WHERE

1. Alberta, Canada (1)

WHO

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

WHEN

1. 1920 (1)
2. 1945 (1)
3. between circa 1929 and ci … (1)