License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Giovanni Jacopo Caraglio. Hercules defeating the river god Acheolus in the form of a bull, with three women to his left holding cornucopias, from "Herculean Subjects", ca. 1526–27. The Metropolitan Museum of Art.