License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Giuseppe Galli Bibiena. Elevation of a Catafalque: Two Pedestals with Candelabra at Sides; with Central Obelisk Surrounded by Candelabra (recto); Sketch of architecture: archway and corner with pillars (verso), 1696–1756. The Metropolitan Museum of Art.