The American Adding Machine @jaapsch2
The American Adding Machine @jaapsch2
Uploaded January 2022 | Updated September 2026, 1 hour ago
The American Adding Machine was made from about 1913 till 1922 by the American Can Company, and for a short while after that by The American Adding Machine Company. The one I show here is the earliest model, which has a gorgeously patterned case.

For more information on this and other calculators in my collection, please visit my website:
jaapsch.net/mechcalc

0:00 Introduction, History
0:54 Input mechanism
1:32 Addition
2:15 Clearing
2:55 History
5:22 Outro
The American Adding MachineThe Russian Felix M calculatorThe Elm City CounterThe Calculator adding machineThe Direct II mechanical calculatorOne-handed Riffle ShuffleLittle Giant Adding MachineConsul, The Educated MonkeyThe Contex 10 mechanical calculatorThe Comptometer 992 mechanical calculatorAddometer adding machineThe Triumphator KA adding machine
Jaap Scherphuis |

The American Adding Machine

SHARE TO X SHARE TO REDDIT SHARE TO FACEBOOK WALLPAPER