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).
Bernhard Rode. Love Mourns at the Tomb of Preacher Bruhn (Am Grabmal des predigers Bruhn trauert die eheliche Liebe), c. 1790. National Gallery of Art, Washington.