“Dig”, 1909. Sadie Wendell Mitchell. Poster by Mitchell showing a woman sitting in a room filled with books reading a work titled Economy. A sign with text “Do It Now” hangs on the wall above the woman’s head. Part of the artist’s “Girls Will Be Girls” poster series. Chromolithograph by Close, Graham, & Scully, Inc., New York, 1909. From the Library of Congress.