The Denominator, a pay roll adding machine
Channel: Jaap Scherphuis
Date: 10/09/2021

The Denominator is a rare adding machine that simply contains a separate counter for each denomination of US currency. You would go through a stack of pay slips, entering the coins and bills needed for each one, so that at the end you'd know how many coins and bills to take out from the bank to pay your staff. The Denominator Adding Machine Company was founded in 1914 by Frank H. Morse to make this machine. The company still exists today, now called the Denominator Company, and is still making mechanical counters.

For more information an this and other machines in my collection, please visit my website:
https://www.jaapsch.net/mechcalc/

0:00 Introduction
0:24 What it is used for
0:54 Company history
3:21 How to operate it
3:45 Serial number
4:08 Production
4:39 Opening the machine
6:22 Mechanism
7:55 Repairs
9:23 Outro