REMOVE

1. flags
2. sky
3. windows
4. train sheds

WHAT

1. artists (visual artists) (1)
2. black-and-white film (1)
3. brick (clay product) (1)
4. campuses (1)
5. colleges (buildings) (1)
6. commencements (1)
7. exterior views (1)
8. eyeglasses (1)
9. hats (1)
10. men (male humans) (1)
11. photographers (1)
12. podiums (platforms) (1)
13. portraits (1)
14. railroad stations (1)
15. robes (main garments) (1)
16. stages (performances spac … (1)
17. Visual Works (hierarchy n … (1)
18. women (1)

WHEN

1. 1967 (1)