REMOVE

1. negative
2. Nitrate negatives
3. Harbors.
4. Cities & towns.
5. Library of Congress Prints a …
6. between 1904 and 1938

WHAT

1. Cities & towns. (1)
2. Nitrate negatives (1)
3. Photographs (1)

WHO

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

WHEN

1. 1869-1942 (1)
2. 1904 (1)
3. 1938 (1)
4. between 1904 and 1938 (1)