REMOVE

1. negative
2. Musicians.
3. Portrait photographs
4. Genthe, Arnold
5. Library of Congress Prints a …
6. 1915 July 3

WHAT

1. Glass negatives (1)
2. Photographs (1)
3. Portrait photographs (1)
4. Violins. (1)

WHO

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

WHEN

1. 1869-1942 (1)
2. 1915 (1)
3. 1915 July 3 (1)