REMOVE

1. Nitrate negatives
2. Violins.
3. not before 1919

WHAT

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

WHO

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

WHEN

1. 1869-1942 (1)
2. 1919 (1)
3. 1921 (1)
4. not before 1919 (1)