Magic brain' calculator. C.1955

Made:
c.1955
Magic Brain' calculator made by Chadwick in tin and plastic, with stylus and instructions. C.1955. Very similar to the

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Magic Brain' calculator made by Chadwick in tin and plastic, with stylus and instructions. C.1955. Very similar to the
Science Museum Group Collection
© The Board of Trustees of the Science Museum

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

Magic Brain' calculator made by Chadwick in tin and plastic, with stylus and instructions. C.1955. Very similar to the Exaxctus and other stylus calculators of the period, the Magic Brain could add, subtact, and multiply and duivide by repeated addition and subtraction.

Details

Category:
Mathematics
Object Number:
1986-1556
Materials:
plastic (unidentified) and steel (metal)
type:
adding machines (stylus)
credit:
Mrs G. Whiting