License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Honoré Daumier. La Visite à l'Atelier, from Croquis Parisiens, published in Le Charivari, May 22, 1857, May 22, 1857. The Metropolitan Museum of Art.