License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Honoré Daumier. Empedocles receiving the divine honors from the inhabitants of Salinonte for having a river purified: Project proposed b the Charivari to the Academy of Fine Arts, from 'News of the day,' published in Le Charivari, May 1, 1866, May 1, 1866. The Metropolitan Museum of Art.