License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Cherubino Alberti (Zaccaria Mattia). Winter (Hyems), represented as a seated man crossing his arms across his chest, a spandrel-shaped composition from "The Four Seasons", ca. 1570–1615. The Metropolitan Museum of Art.