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Brother ProCal 514 Desktop Calculator

Image Courtesy Charles C. Littell, III

14-digit Nixie display calculator. Four function with accumulating memory register. Fixed decimal point set by thumbwheel switch. User-selectable rounding mode. Sum of Products/Quotients accumulating mode. Small-scale integrated circuit logic. Second generation of Brother desktop calculators. See the exhibit on the Brother Calther 412 for an example of Brother's first-generation electronic calculator.