electromechanical calculator
Date: 1950-1960
Inventory Number: WJ1042
Classification: Calculator
Dimensions:17 x 36 x 29 cm (6 11/16 x 14 3/16 x 11 7/16 in.)
Accessories: power cord; plastic cover signed "MONROE"
Description:
Calculator with ten columns of numbers, from 0 (blank) to 9. Addition and subtraction have their own keys. For multiplication and division, a switch needs to be flipped. The above carriage is not static, and is used to display the results of the arithmetical operation. The handle at the right is for reset purposes. The large key in front is turned to start and complete the mechanical movement of the calculator.