Claude Laurent (?–1848) Paris, dated 1826Glas; silver and copper (ferrules); sliver (keys) eight keysL. 673 mm, 589,5 mm (vibrating)Purchaselnv. 1957.12.C.LAURENT A PARIS 1826. / Breveté. (engraved, head joint); Parisian brand of guarantee for small works (ferrules)