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 Char du Mont Parnasse (The Chariot of Mount Parnassus), from "Guerre de Beauté" (Guerra di Bellezza) (War of Beauty), 1616. The Metropolitan Museum of Art.