License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Parmigianino (Girolamo Francesco Maria Mazzola). Apparition of Christ (recto); Printed Fragment with Jupiter Enthroned with Eagle, from Caraglio's "Martyrdom of Saint Peter and Saint Paul" (verso), 1524–27. The Metropolitan Museum of Art.