French mantle clock with tellurian, c. 1810, attributed to Henri Lepaute, see below. Two train, Tic-Tac escapement, half second pendulum, hour and half hour strike on count wheel. An orrery is mounted to the top of the clock case and is driven by the clock in real time as well as by a demonstration key. 21"h x 9"w x 6.5"d.