License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Joseph Mallord William Turner. Aesacus and Hesperie, Vide Ovid Metamorphosis, Book XI, part XIII, plate 66 from "Liber Studiorum", January 1, 1819. The Metropolitan Museum of Art.