License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Erasmus Quellinus. An Allegory of the Arts with Isis and Geometry Attending the Three-headed Figure of Painting and Sculpture, a Putto Crowning her with Laurels, 17th century. The Metropolitan Museum of Art.