Magic Brain Calculator - How to Subtract

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Found this old calculator in my great grandmother's attic : r/mildlyinteresting

≥ Magic Brain Calculator met originele doos en handleiding — Rekenmachines — Marktplaats

Magic Brain Calculator, #772169

Only One App, Magic-Brain Calculator, purchased from a TV G…

Vintage 1960s MAGIC BRAIN Pocket Mechanical Addiator Calculator Unpunched NOS

Machine works as it should and has the stylus which is always missing. Spot on the side that holds the stylus is unfortunately broken. Box is a little

Vintage Chadwick Magic Brain Calculator with Sylus and Box, 196?

Cool vintage manual pocket calculator made in Japan by Chadwick from the 1960's. Called the Magic Brain Calculator, you can subtract, add or multiply

Vintage Pocket Adding Machine, 1960s Chadwick Magic Brain Calculator, Made In Japan, Addition, Subtraction, Multiplication Manual Calculator

Magic-Brain Calculator - Calculator - Computing History

, Made in Hong Kong, Includes Original Simplified Instructions, In Good Used Condition! 6/10

Vintage 1960's Magic Brain Pocket Calculator with Stylus