REMOVE

1. Portrait photographs
2. Photographs
3. Group portraits
4. 1929 or 1930

WHAT

1. Dancers. (1)
2. Group portraits (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. 1929 (1)
3. 1929 or 1930 (1)