6 Calculating Machines
![6 Calculating Machines](https://p1.liveauctioneers.com/364/305303/163062999_1_x.jpg?height=310&quality=70&version=1697014208)
![](https://www.whipplemuseum.cam.ac.uk/sites/www.whipplemuseum.cam.ac.uk/files/styles/leading/public/1658_1.jpg?itok=tNcPzAqs)
A Brief History of Calculating Devices
Original Odhner Calculating Machine
![](https://media.gettyimages.com/id/514892596/photo/view-of-a-replica-of-the-calculating-machine-invented-by-blaise-pascal-bpa2.jpg?s=612x612&w=gi&k=20&c=LgaY5b366gV-L-dcJAG9i2lBYOLvBnc5XbN-WxMv_3k=)
77 Pascal Calculator Stock Photos, High-Res Pictures, and Images - Getty Images
The Victor 1560-6 is perfect for the everyday advanced user, especially in a busy office setting. Extra heavy duty durability is perfect for power
![](https://www.victortech.com/wp-content/uploads/1560-6-01.png)
12 Digit Professional Grade Heavy Duty Commercial Printing Calculator
![](https://www.technikum29.de/shared/photos/rechnertechnik/rheinmetall.jpg)
Electro-) mechanical calculators - technikum29
![](http://infolab.stanford.edu/pub/voy/museum/pictures/DisplayHector/125CalcMarchantKeys.jpg)
Calculators
![](https://www.hpmuseum.org/big/monroe.jpg)
Motor Driven Mechanical Calculators
![](http://www.crisvandevel.de/images/b2a5.jpg)
Cris' site on antique mechanical four-species calculators
![](https://www.shutterstock.com/image-photo/old-mechanical-manual-counting-machine-260nw-385135120.jpg)
1,199 Mechanical Calculating Devices Images, Stock Photos, 3D objects, & Vectors
![](http://upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Comptometer_model_ST_Super_Totalizer.png/320px-Comptometer_model_ST_Super_Totalizer.png)
8 Amazing Mechanical Calculators Before Modern Computers
![](https://upload.wikimedia.org/wikipedia/commons/f/f5/Marchant_EB9.jpg)
Marchant Calculating Machine Company: Most Up-to-Date Encyclopedia, News & Reviews