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. Chimneypiece in the Egyptian style: Giant figures supporting the lintel, flanked by chairs, from "Diverse Maniere d'adornare i cammini..." (Diverse Ways of ornamenting chimneypieces...), 1769. The Metropolitan Museum of Art.