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

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Magic Brain Calculator - A vintage mechanical addiator type calculator, 1950-60s - Aluminium, Plastic, original packaging - Catawiki

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c.1960s KINGSON POCKET CALCULATOR, STYLUS INSTRUCTIONS & CASE, COMPUTING HISTORY

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