REMOVE

1. Nitrate negatives
2. Photographs
3. Music ensembles.
4. Library of Congress Prints a …
5. Genthe, Arnold
6. 1921 Apr. 21

WHAT

1. Group portraits (1)
2. Music ensembles. (1)
3. Nitrate negatives (1)
4. Portrait photographs (1)

WHO

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

WHEN

1. 1869-1942 (1)
2. 1921 (1)
3. 1921 Apr. 21 (1)