License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Anthony van Dyck. Study for an Equestrian Portrait, Possibly that of Albert de Ligne, Count of Arenberg; verso: Various Studies of Statues and Figures, Including the Venus Pudica and Scipio and his Lictor, ca. 1628–32. The Metropolitan Museum of Art.