REMOVE

1. Musicians.
2. Portrait photographs
3. Nitrate negatives
4. 1919 or 1920

WHAT

1. Nitrate 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. 1919 (1)
3. 1919 or 1920 (1)