License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Guilliam du Gardijn. View of the Ponte San Rocco at Tivoli; verso: Buildings on the River Aniene near Tivoli (?), ca. 1640–45 (?). The Metropolitan Museum of Art.