A French giant black marble and silvered four glass long duration mantel clock with centre seconds The movement stamped for H..P and Company, Paris, late 19th century The circular four pillar twin train bell striking movement with visible Brocot escapement regulated by large disc bob pendulum incorporating Brocot type regulation to the suspension and centre seconds, the backplate stamped H.P. & Co over diamond lozenge enclosing number 3258 with further number 11078 beneath, the 6 inch circular two-piece white enamel Roman numeral dial with visible Brocot escapement to the recessed centre and blued steel spade hands within ogee-moulded silvered bezel, the bevel-glazed case with heavy marble top incorporating stepped quarter-round edge moulding over cavetto cornice and thick glass panels set between solid caddy moulded corner uprights, the front and back incorporating full-height pin-hinged doors, on cavetto moulded skirt base with rounded corners and silvered pad feet, 51cm (20ins) high. Being centre seconds with visible Brocot escapement the train-count for the going train is difficult to ascertain without dismantling the movement. However the amount of wheels present (three between the greatwheel and centre seconds wheel), coupled with the fact that the strike train has an intermediate between the great and hammer wheels, would suggest that the movement of the current lot has a duration of at least one month.