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).
Guillaume-Benjamin-Amant Duchenne (de Boulogne). A portrait, seen in profile, of a man 42 years old, stupefied by the abuse of alcohol; his nose is aquiline, 1854-1856, printed 1862. National Gallery of Art, Washington.