REMOVE

1. Portrait photographs
2. Photographs
3. Nitrate negatives
4. Violins.
5. Library of Congress Prints a …
6. 1923 July 10

WHAT

1. Musicians. (1)
2. Nitrate negatives (1)
3. Portrait photographs (1)

WHO

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

WHEN

1. 1869-1942 (1)
2. 1923 (1)
3. 1923 July 10 (1)