REMOVE

1. Glass negatives
2. Musicians.
3. Genthe, Arnold
4. Library of Congress Prints a …
5. between 1937 and 1942
6. 1869-1942

WHAT

1. Glass negatives (1)
2. Music ensembles. (1)
3. Photographs (1)
4. negative (1)

WHO

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

WHEN

1. 1937 (1)
2. 1942 (1)
3. between 1937 and 1942 (1)