License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Honoré Daumier. Continuation de l'amélioration des chevauz et de la détérioration des jockeys., from Aux Courses, published in Le Charivari, April 13, 1859, April 13, 1859. The Metropolitan Museum of Art.