License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Jean Auguste Dominique Ingres. The Archangel Raphael (Study for a stained-glass window in the chapel of Notre-Dame de la Compassion-Saint-Ferdinand, Neuilly), ca. 1842. The Metropolitan Museum of Art.