Magic Brain Calculator - A vintage mechanical addiator type

Mechanical Addiator type calculator in its original packaging

Pocket Calculator Isn't A Brain Or Magic

Addiator' type calculators

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

Slide calculator - Wikipedia

Addiator

National Museum of American History

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.

Powerhouse Collection - Two Magic Brain pocket calculators

Unopened package Includes instructions, Calculator and Stylus are both metal

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

Powerhouse Collection - An 'Exactus Mini- Add' pocket calculating machine.