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. A lady standing in center holding a fan watching the bathers in the river to right, other ladies and men watching bathers to left in the background, from "Various figures and lands" (Diverse figure e paesi), 1649. The Metropolitan Museum of Art.