A late 19th-century torsion instrument, signed Maison BREGUET Paris, No B4796, further engraved Regulateur Y VILLARCEAU 5 EME TYPE B34, the clock-work mechanism contained with a rectangular case driving an arm and two pivot-pins labelled 1 Seconde/10 Secondes and 60 Secondes, the cover inscribed 1871-S36, with finely balanced govenor signed BREGUET Constructeur mounted in a glazed turnet, on shaped iron stand with one fixed and two adjustable feet 22in. (56cm.) long See illustration