REMOVE

1. Portrait photographs
2. Library of Congress Prints a …
3. between 1911 and 1920

WHAT

1. Autochromes (2)
2. Photographs (2)
3. Portrait photographs (2)
4. autochrome (2)

WHO

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

WHEN

1. 1869-1942 (2)
2. 1911 (2)
3. 1920 (2)
4. between 1911 and 1920 (2)