Crystal bottle with white ceramic paste inlays, produced in the now lost Cristallerie de Vonêche in southern Belgium, in the province of Namur, with a double portrait of Napoleon and his second wife Marie Louise, later Duchess of Parma. On the back is a portrait of their son, the “King of Rome” (1811-1832), based on the portrait by Jean-Baptiste Isabey. Hinged silver stopper with hallmarks. This process is erroneously called sulphide glass.