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. Plate 2: a soldier seated to left beneath an archway, another lying on the ground to right alongside military equipment, from "Troops, cannons, and attacks on towns" (Dessins de quelques conduites de troupes, canons, et ataques de villes), ca. 1640. The Metropolitan Museum of Art.