Barometer in finely carved and gilded wood, with refined decoration of passementeries and knotted ribbons framing the dial. Signed Bernon, optician, rue du Roule N°1 in Paris - According to Coricelli Restoration period H. 87 cm - W. 47 cm (Accidents and restorations: wear and small missing gilding) Situated in the rue du Roule, a district close to the Louvre and the Palais-Royal popular with its scientific instrument makers, this barometer bears witness to the reputation of Parisian opticians in the 18th and early 19th centuries.