REMOVE

1. Photographs
2. Nitrate negatives
3. Dancers.
4. Library of Congress Prints a …
5. between 1917 and 1920

WHAT

1. Nitrate negatives (1)
2. negative (1)

WHO

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

WHEN

1. 1869-1942 (1)
2. 1917 (1)
3. 1920 (1)
4. between 1917 and 1920 (1)