This instrument, made by Luigi Roverelli and Antonio Quinquernell, measured the distance traveled by a carriage. It is housed in a perforated wooden box. The protruding chain was connected eccentrically to a wheel of the vehicle. The wheel's motion was transmitted to the odometer mechanism. This activated a pair of pointers, which displayed the distance traveled on a double gilt and silvered scale. Provenance: Lorraine collections.