The Mercedes Euklid 16 mechanical calculator
Channel: Jaap Scherphuis
Date: 2021-12-29

The Mercedes Euklid 16 is a mechanical calculator that was in production from 1927 till about 1935. The Euklid machines use a unique proportional lever mechanism. This model was the first to use a modular keyboard with tightly packed cubical keytops. It can do automatic division, and has a neat automatic decimal point system for multiplication.

I also have videos of the later Euklid model 29:
https://www.youtube.com/watch?v=aVFtFHLIrYM
Video showing the mechanism:
https://www.youtube.com/watch?v=nsUWe9KkR8A

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

0:00 Introduction
0:21 Keyboard
1:00 Crank
1:31 Addition
2:30 Subtraction
3:12 Clearing
3:29 Multiplication
4:48 Decimal points
6:35 Automatic division
9:05 Serial number
9:44 Outro