The Addo Model 2 adding machine
Channel: Jaap Scherphuis
Date: 2024-03-28

The Addo Model 2 adding machine was made in Sweden from 1920 to 1926. It is similar to the Comptator but with a ripple carry mechanism, and mounted on a wooden stand.

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

0:00 Introduction
0:22 Entering numbers
1:04 Addition
1:33 Carry
2:05 Clearing
2:28 Outro