License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Giovanni Battista Foggini. Design for an Equestrian Statue in a Cartouche (recto); Sketches for a Frieze with Sea-Shells and Floral Ornament (verso), 1672–1725. The Metropolitan Museum of Art.