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 Guerrier au Chapeau Orné d'une Grande Plume (The Officer with a Large Feather in His Hat), from "La Noblesse" (The Nobility), ca. 1623. The Metropolitan Museum of Art.