REMOVE

1. moustaches
2. black-and-white film
3. doorways
4. studios (work spaces)

WHAT

1. Visual Works (hierarchy n … (1)
2. artists (visual artists) (1)
3. artists' materials (1)
4. cans (containers) (1)

More 

WHERE

1. 48 Cooper Square, New Yor … (1)

WHO

1. Hans Namuth (1)
2. Namuth, Hans (1)

WHEN

1. 1951 (1)