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, Avec une Grande Épée (Man Viewed from Behind, with a Large Sword), from "Les Caprices" Series B, The Nancy Set, 1617–20. The Metropolitan Museum of Art.