Artifact Details Title Calculator Catalog Number 102766318 Type Physical Object Description The object is a calculator with a rotary telephone dial, a series of power transistor driver cards, and red and green indicator lights. The lights are arranged in two rows and 16 columns, right to left with the series 1, 2, 4, 8, ... 32768. Dimensions overall: 11 7/8 in x 17 1/8 in x 10 3/8 in Category Calculator/electromechanical Credit Gift of Warren Yogi Lot Number X8065.2017