The 'Brical' British calculator, 1905.
4 0 c m
actual image size: 26cm x 32cm

The 'Brical' British calculator, 1905.

Hills, Jennie

© Science Museum / Science & Society Picture Library


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.



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