The Roi de Rome, Infant Son of Napoleon Bonaparte, Portrait Snuff Box. After Francois Gerard.The Roi de Rome, An Early 19th Century Ormolu Mounted Circular Snuff Box with Central Engraving of the Infant Son of Napoleon Bonaparte, After Francois Pascal Simon Gerard. The snuff box is of turned ebonised wooden form with two bands of ribbon and reeded ormolu mounts. The inner mount surrounding a glazed portrait engraving. The box dates to the early 19th century. The likely engraver was Auguste Gaspard Louis Desnoyers and the original painting was