License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Honoré Daumier. At the Chalons Camp: –Papa, why do they make the soldiers go out in the rain? –My boy, it is in order for them to learn to be under fire! from 'News of the day,' published in Le Charivari, August 19, 1869, August 19, 1869. The Metropolitan Museum of Art.