The First Book of Mechanical Mathematical Instruments

that which presents itself to the view can be promptly and exactly described and depicted according to the measurement that one desires.
37 A new geographical surveying instrument, which, attached to the saddle of a horse, truly demonstrates, by its pace, the length of the road that one has traveled.
38 An instrument similar to the previous one, by which and by the pace of a man, one could exactly measure the circuit of some place or the length of a road traveled.
39 A certain type of carriage very convenient for this same measurement of roads.
40 Another device worthy of admiration, which can be easily applied to any type of seagoing vessel, showing the same measurements to pilots and mariners.