Antique Calculagraph. Time calculator-printer. Telephone toll, Pool table time

Description

A unique conversation piece!  This Calculagraph made by the Calculagraph Co. in Harrison, NJ. The Calculagraph was invented by Henry Abbot, a New York watchmaker, in 1897. Abbot invented the Calculagraph to mechanically calculate and print the elapsed time between two events. They had many applications from tracking table usage in pool halls, to clocking the duration of toll telephone calls, as well as employee time clocks use on the railroads. "The unit consists of a clock and a precision gear-based set of three printing wheels, which print on standardized accounting tickets." (Wikipedia) This Calculagraph is electric, but is not working. It measures about 10 inches across x 9 inches tall.
Condition
used