Magic brain' calculator. C.1955 Science Museum Group Collection

Magic brain calculator in tin and plastic, with stylus and instructions

Magic Brain Calculator with instructions. 1960's.

What is the older history of computers and computation devices pre

Powerhouse Collection - Two Magic Brain pocket calculators

RR Auction: Science and Technology by RR Auction - Issuu

Mathematical Treasure: Wang Loci-2 Programmable Calculator

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

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

Search our collection Science Museum Group Collection