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).
Jean-Baptiste-André Gautier Dagoty after François-Hubert Drouais. Jeanne Bécu, Comtesse Du Barry, Being Offered a Cup of Coffee by Zamor, 1771. National Gallery of Art, Washington.