REMOVE

1. negative
2. Ruins.
3. Cities & towns.
4. Customs houses.
5. Library of Congress Prints a …
6. Genthe, Arnold
7. 1869-1942

WHAT

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

WHO

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

WHEN

1. 1899 (2)
2. 1926 (2)
3. between 1899 and 1926 (2)