License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Antonio Basoli. Design for a Stage Set: Semi-Circular Colonnaded Building, a Bridge Surmounted by a Tempietto, a Fountain in the Foreground and Putti Bearing Garlands., 1774–1843. The Metropolitan Museum of Art.