2 Free Images of Brical British Calculators

cc-zerofiles uploaded by daderotportable mechanical calculators in the ridai museum of modern science
BriCal for Compound Addition, British Calculator - Ridai Museum of Modern Science, Tokyo - DSC07503
self-published workletter
British Calculator Model C - Ridai Museum of Modern Science, Tokyo - DSC07504
self-published workboxing
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