License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Honoré Daumier. Môssieu le concierge, from Croquis Parisiens, published in Le Charivari, November 25, 1856, November 25, 1856. The Metropolitan Museum of Art.