Powerhouse Collection - Two Magic Brain pocket calculators

Mechanical addiator type calculators (2) with stylus, instruction manual and packaging, magic brain pocket calculator, metal / plastic / paper, maker unknown, Hong Kong / Japan, 1950-1960

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Pocket Calculator.

Vintage 1960's Magic Brain Pocket Calculator Brand New Sealed Package

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Vintage Magic Brain Pocket Calculator with Stylus Hong Kong

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Vintage 1960s MAGIC BRAIN Pocket Mechanical Addiator Calculator

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Magic-Brain Calculator (2) - Calculator - Computing History