License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Honoré Daumier. A visit to the studio, from 'The difficult moments of life,' published in Le Charivari, March 28-29, 1864, March 28–29, 1864. The Metropolitan Museum of Art.