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. Two horses ascending the bank of a river at right, following a procession of horses and one horseman to the left, plate 7 from "Diversi capricci", ca. 1644–47. The Metropolitan Museum of Art.