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).
Italian 16th Century, after Antonio Tempesta. La Calvacatura con le sue Cerimonie [The Procession for the 'Possesso' of a new Pope at the Lateran], 1575-1630. National Gallery of Art, Washington.