REMOVE

1. Nitrate negatives
2. negative
3. Photographic studios.
4. Library of Congress Prints a …
5. 1911
6. between 1906 and 1911

WHAT

1. Nitrate negatives (1)
2. Photographic studios. (1)
3. Photographs (1)

WHO

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

WHEN

1. 1869-1942 (1)
2. 1906 (1)
3. between 1906 and 1911 (1)