REMOVE

1. negative
2. Acetate negatives
3. Library of Congress Prints a …
4. Genthe, Arnold
5. not before 1918
6. 1918

WHAT

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

WHO

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

WHEN

1. 1869-1942 (1)
2. 1920 (1)
3. not before 1918 (1)