License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Anonymous, French, 16th century. Pantheon, vestibule, perspective; panel moulding, profiles (recto) Pantheon, rectangular niche, plan; half round niche, plan (verso), early to mid-16th century. The Metropolitan Museum of Art.