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. Moorish horseman in profile facing right, in the background a pyramid at left, many figures and an elephant, from "Figures on Horseback" (Cavaliers nègres, polonais et hongrois), ca. 1648–53. The Metropolitan Museum of Art.