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).
Emmanuel Jean Nepomucène de Ghendt after Claude-Louis Châtelet. Vue de Ruines et de fragments de Construction antique...de l'ancienne Capoue, 1781/1786. National Gallery of Art, Washington.