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).
Pierre-Philippe Choffard after Jean-Michel Moreau. Chacun respecte le travail des autres, afin que le sien soit en sûreté, 1777/1779. National Gallery of Art, Washington.