REMOVE

1. Nitrate negatives
2. Photographs
3. Portrait photographs
4. Library of Congress Prints a …
5. -2
6. 1917 Dec

WHAT

1. Nitrate negatives (1)
2. Portrait photographs (1)
3. negative (1)

WHO

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

WHEN

1. 1869-1942 (1)
2. 1917 Dec (1)
3. 2 (1)