License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Thomas Sully. Standing Draped Female Figure; Portrait of a Cleric; Half-length Portrait of a Man; Figures with Wagons and Horses (Napoleon Scene?) (from Sketchbook), 1810–20. The Metropolitan Museum of Art.