License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Honoré Daumier. Sir, so far there are only five people here..., from 'Theater sketches,' published in Le Charivari, April 3, 1864, April 3, 1864. The Metropolitan Museum of Art.