Magic Brain Calculator - A vintage mechanical addiator type

Mechanical Addiator type calculator in its original packaging

Group of Vintage Adding and Numbering Machines

Vintage, 1950s, 50s, West Germany, Addiator, Universal, Standard Model, Pocket Calculator, Mechanical, Adding Machine, With Stylus

Sterling Slide Adders

Addiator sliding calculator Review / HowTo

Facit 1128, an old electronic calculator from 1970 (Video N°92)

Vintage Chadwick Magic Brain Calculator. Made in Japan. Mid century modern. This item is used and has visible scratches and signs of usage. I have

Vintage Chadwick Magic Brain Calculator. Made in Japan Mid century modern.

Unopened package Includes instructions, Calculator and Stylus are both metal

Vintage 1960's Magic Brain Pocket Calculator W/Stylus, Made in Hong Kong

Pocket Calculator Isn't A Brain Or Magic

Pocket Calculating Devices

Addiator' type calculators

Magic Brain Instructions

Notched Band Adders Smithsonian Institution

Addiators A Collection of Mechanical Calculators

Slide calculator - Wikipedia