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. Naval combat, a ship at center, seen from behind, firing at four enemy ships, another ship entering from the right, a rowboat with nine people to left, from "Peace and War" (Divers desseins tant pour la paix que pour la guerre), ca. 1641. The Metropolitan Museum of Art.