License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Honoré Daumier. C'est peut-être bon...mais c'est égal..., from Les Hippophages, published in Le Charivari, October 23, 1856, October 2, 1856. The Metropolitan Museum of Art.