Worldwide sale. Napoleon III thermometer. Decorative mercury thermometer on onyx. Louis XVI style gilt bronze decorations: 2 garlands of roses. The edge is highlighted with a gilt bronze border. On the back, a ring to hang it. There was a crutch to put it down but it has disappeared. The photos show its good condition and are part of the description. 9 cm wide and 22 cm high. Superb authentic object to offer or to treat yourself.