License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Jacques Callot. S. Discore, martyr (St. Discorus, Martyr), May 18th, from "Les Images De Tous Les Saincts et Saintes de L'Année" (Images of All of the Saints and Religious Events of the Year), 1636. The Metropolitan Museum of Art.