REMOVE

1. Art objects.
2. autochrome
3. Photographs
4. Library of Congress Prints a …
5. between 1906 and 1942

WHAT

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

WHO

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

WHEN

1. 1869-1942 (2)
2. 1926 (2)
3. 1926 Dec. 22 (2)