License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Honoré Daumier. The competition at the conservatory: At the 79th audition of "Oh, what a pleasure to be a soldier!", from 'News of the day,' published in "Le Charivari", August 1, 1870. The Metropolitan Museum of Art.