A fine mid 19th century mahogany floor-standing regulator, Henry Frodsham, Liverpool, the tapering case surmounted by a ball finial and anthemion carved ear pieces, with glazed front door on a panel base, the 12 inch signed silvered circular dial with outer band for minutes enclosing subsidiaries for hours and running seconds with Observatory marks, the weight driven movement protected by three shaped brass covers secured with a total of nineteen screws, the substantial arched plates United with six heavy turned brass pillars screwed at both ends, with all wheels of six crossings and set in adjustable ends, tops, with high count pinions, maintaining power and deadbeat escapement with shaped pallet arm and jewelled pallets, the long steel crutch with screw micrometer beat regulation to the top, the mercury pendulum suspended from a heavy brass bracket mounted on the backboard with further screw adjustment 2.16m