REMOVE

1. Nitrate negatives
2. Photographs
3. Portrait photographs
4. between 1931 and 1934

WHAT

1. Nitrate negatives (1)
2. Portrait photographs (1)
3. negative (1)

WHO

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

WHEN

1. 1869-1942 (1)
2. 1931 (1)
3. 1934 (1)
4. between 1931 and 1934 (1)