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).
Charles Meryon after Stefano Della Bella. Passerelle du Pont-au-Change, Paris, après l'Incendie de 1621 (Footbridge Temporarily Replacing the Pont-au-Change, Paris, after the Fire of 1621), 1860. National Gallery of Art, Washington.