License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Jacques Callot. L'Homme Vu de Dos la Main Droite Tendue (Man Seen from Behind with his Right Hand Extended), from "Les Caprices" Series A, The Florence Set, 1617. The Metropolitan Museum of Art.