By A Mystery Man Writer
Der Magic-Brain Calculator wurde in den 1960er und 70er-Jahren in Japan unter verschiedenen Namen produziert. Ein genauer Hersteller ist leider nicht
Vintage 1960's Magic Brain Pocket Calculator W/Stylus, Made in Hong Kong - Unopened package Includes instructions, Calculator and Stylus are both
Vintage 1960's Magic Brain Pocket Calculator W/Stylus, Made in Hong Kong
Vintage 1960's Magic Brain Pocket Calculator W/Stylus, Made in
Magic brain' calculator. C.1955 Science Museum Group Collection
Astrolabium Planum of Heidelberg - Ziereis Facsimiles
Vintage Chadwick Magic Brain Calculator on A La Modern
Magic-Brain Calculator (2) - Calculator - Computing History
Magic Brain Calculator - How to Add
VINTAGE MAGIC BRAIN Pocket Calculator W/Stylus, Made in Hong Kong
Magic-Brain Calculator Smithsonian Institution