License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Stefano della Bella. Air, a landscape during a hurricane, three horsemen battling the wind, a mass of trees to the right, from "The Four Elements" (Les Quatre Eléments), ca. 1645–50. The Metropolitan Museum of Art.