The Facit CM2-16 is a four-species rung wheel machine with numeric keypad developed by Facit AB. A four-species rung wheel machine with numeric keypad is a mathematical tool that helps calculate the four basic arithmetic operations, addition, subtraction, multiplication and division. Numeric keypad comes from the numbers 0-9, which you could enter.
The Facit CM2-16 is the first crank calculating machine with double transmission, which means that values from the result mechanism and the quotient mechanism can be returned to the setting mechanism.
The CM2-16 has an 11-digit setting mechanism, a 9-digit quotient mechanism and a 16-digit result mechanism.
The serial number of this CM2-16 is 1079348.
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