REMOVE

1. Nitrate negatives
2. Portrait drawings
3. negative
4. Genthe, Arnold
5. Library of Congress Prints a …
6. Unknown

WHAT

1. Nitrate negatives (1)
2. Photographs (1)
3. Portrait drawings (1)

WHO

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

WHEN

1. 1896 (1)
2. 1942 (1)
3. between 1896 and 1942 (1)