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. Fire, a flotilla on fire in center and to the right, two boats full of people to left, from "The Four Elements" (Les Quatre Eléments), ca. 1645–50. The Metropolitan Museum of Art.