License, verbatimPD
The National Gallery of Art: open access image with no usage restrictions under the NGA's open access policy (openaccess=1 in the Gallery's published_images dataset).
Ernst Ludwig Kirchner. Fröhlichkeit (Joyfulness) (headpiece, page 33) from Georg Heym: Umbra Vitae (Georg Heym: The Shadow of Life), 1924. National Gallery of Art, Washington.