License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Jacques Callot. La Translation de St. Marc (The Translation of the Relics of St. Mark), January 31st, from "Les Images De Tous Les Saincts et Saintes de L'Année" (Images of All of the Saints and Feast Days of the Year), 1636. The Metropolitan Museum of Art.