License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Giovanni Battista Piranesi. Egyptian decoration of the Caffè degli Inglesi: Animals on the cornice, including a bull at the center, from "Diverse Maniere d'adornare i cammini..." (Diverse Ways of ornamenting chimneypieces...), 1769. The Metropolitan Museum of Art.