REMOVE

1. curtains (window hangings)
2. artists (visual artists)
3. neckties
4. silhouettes

WHAT

1. Visual Works (hierarchy n … (1)
2. beards (1)
3. black-and-white film (1)
4. coats (garments) (1)

More 

WHEN

1. 1960 (1)
2. 1975 (1)
3. between 1960 - 1975 (1)