REMOVE

1. Visual Works (hierarchy name …
2. models (representations)
3. 1920

WHAT

1. airplanes (1)
2. black-and-white film (1)
3. boys (1)
4. coats (garments) (1)

More 

WHERE

1. Bow Island, Alberta, Cana … (1)

WHEN

1. 1912 (1)
2. between 1912 - 1920 (1)