License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Charles Nicolas Cochin I. Decoration for a Masked Ball at Versailles, on the Occasion of the Marriage of Louis, Dauphin of France, and Maria Theresa, Infanta of Spain (Bal masqué donné par le roi, dans la grande galerie de Versailles, pour le mariage de Dauphin, 1745), 1764, reprinted ca. 1860. The Metropolitan Museum of Art.