Magic Brain Calculator - Anyone remember using one of these? : r/nostalgia

The Digital Fact Book - Quantel

Unopened package Includes instructions, Calculator and Stylus are both metal

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

Nostalgia & Fun With Calculators – Homo Ludditus

Magic Brain Calculator - How to Subtract

Estate Find!

Vintage 1960s MAGIC BRAIN Pocket Mechanical Addiator Calculator Unpunched NOS

Magic-Brain Calculator Smithsonian Institution

File:Vintage Magic Brain Mechanical Pocket Calculator, Made in Japan (11591234036).jpg - Wikimedia Commons

Magic Brain: Last Gasp of the Mechanical Calculator

The Noonday Demon: An Atlas Of Depression: Solomon, Andrew: 9780684854663: : Books

Magic Brain: Last Gasp of the Mechanical Calculator