The people who operated them (usually women) were also called comptometers and the modern term for the person in charge of an accounting department, Comptroller, is the evolution of the name comptometer (operators titles).
The more modern term for the chief accountant, Controller, is also an evolution from Comptometer.
This was made in 1911 by The Marchant Calculator Company in Oakland, California. It is one of those few machines left that we did a full restoration on in the late 1990s.
It has a fold down side shelf and the front and side panels still have their original beveled plate glass.
Both the machine and the case have an estimated condition rating of 2 , 2.
This machine fits and shows nicely on the 1908 three (3) legged stand below.
It has 13 rows of keys and each is numbered 1 thru 9.
This is an early machine and was manufactured in Detroit either late in 1906 or early 1907.
The last listed patent date on this Comptometer is 1914 and that is most likely, or very close to, the year it was manufactured.
This machine comes with its original tin case and the case is prlobably more rare than the machine.
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