License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
José Guadalupe Posada. A man warning townspeople about what could happen to them from a broadside entitled 'Deportados a las Islas Marias', ca. 1880–1910 (a later impression). The Metropolitan Museum of Art.