REMOVE

1. Dancers.
2. Acetate negatives
3. not before 1918
4. 1869-1942
5. 1918

WHAT

1. Acetate negatives (1)
2. negative (1)
3. Photographs (1)
4. Portrait photographs (1)

WHO

1. Genthe, Arnold (1)
2. Library of Congress Print … (1)

WHEN

1. 1920 (1)
2. not before 1918 (1)