By A Mystery Man Writer
The MagicBrain Calculator was manufactured in 1955 by the Chadwick Company, this early calculator was operated using a stylus, and could perform addition, subtraction and multiplication calculation
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Magic Brain Calculator-original Pocket Math Device-1960s-made in
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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