The 'Brical' British calculator, 1905.

Image number: 10327821

The 'Brical' British calculator, 1905.

Patented by H and M Dickinson, the 'Brical' was Britain's answer to the French circular 'Tronset' instrument and is a modification of it. It was designed to add sums of money from 1/2d to £500.

Image number:
Science Museum/Science & Society Picture Library
Date taken:
20 October 2003 18:53
Image rights:
Science Museum

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