License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Antonio Tempesta. Plate 106: Peleus's Cattle, ad the Sea Wolf Turned to Marble (Psamantes Pelei, Thetidisq precibus expugnata lupum in saxum mutat), from Ovid's 'Metamorphoses', 1606. The Metropolitan Museum of Art.