License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Aegidius Sadeler II. View from the west of ruins of the Aventine Hill, Rome, with boats on the river Tiber in the foreground, plate 21 from "Ruins of the antiquity of Rome, Tivoli, Pozzuoli, and other places" (Vestigi della antichità di Roma, Tivoli, Pozzvolo et altri luochi), 1606. The Metropolitan Museum of Art.