License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Jacques Callot. Le Duel a l'Épée et au Poignard (The Duel with the Sword and Dagger), from "Les Caprices" Series A, The Florence Set, 1617. The Metropolitan Museum of Art.