REMOVE

1. negative
2. Opera singers.
3. Photographs
4. Genthe, Arnold
5. 1921 Feb. 1
6. 1869-1942

WHAT

1. Nitrate negatives (1)
2. Opera singers. (1)
3. Portrait photographs (1)

WHO

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

WHEN

1. 1921 (1)
2. 1921 Feb. 1 (1)