License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Honoré Daumier. The Boulogne Train Station. An English Excursion Train (La gare de chemin de fer de Boulogne. Un train de plaisir anglais), from Physionomies des Chemins de Fer (Physiognomies of the Railways), March 24, 1852. The Metropolitan Museum of Art.