REMOVE

1. machinery
2. circa 1926-36

WHAT

1. bridges (built works) (2)
2. colored pencils (2)
3. graphite pencils (2)
4. landscapes (representatio … (2)
5. notes (2)
6. trains (vehicle groupings … (2)
7. Visual works (hierarchy n … (2)

WHO

1. Still, Clyfford (2)

WHEN

1. 1926 (2)
2. 1936 (2)