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).
Francesco Barbazza after Giuseppe Palazzi (architect). The Prima Macchina for the Chinea of 1785: The Temple of Jupiter Begun by Tarquinius Priscus with the Marvel of Accius Naevius, 1785. National Gallery of Art, Washington.