License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Honoré Daumier. Voyageurs appréciant de moins en moins les..., from Les Agréments des Chemins de Fer, published in Le Charivari, December 25, 1856, December 25, 1856. The Metropolitan Museum of Art.