REMOVE

1. negative
2. Rock art.
3. Photographs
4. Glass negatives
5. 1928

WHAT

1. Glass negatives (1)
2. Rock art. (1)

WHO

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

WHEN

1. 1869-1942 (1)
2. 1899 (1)
3. between 1899 and 1928 (1)