William Gullick, Mary, Zoe, Marjory, and Chloe Gullick, c.1909, autochrome, State Library of New South Wales, Public Domain via Wikimedia Commons.
Autochrome (noun)
An autochrome is a color photograph created with a glass filter that is covered with a colored mosaic of dyed potato starch. Louis Lumière invented the process in 1903.