This full-keyboard, printing adding machine has a steel frame painted black and green There are eight columns of color-coded black and white metal keys with digits written on paper and covered with ...

This ten-key listing electric adding machine has a blue-green plastic case with a black plastic cover for the paper tape and two-color ribbon. It has three rows of white plastic digit keys, with two ...

The machines are coming for our livelihoods, Dear Readers. That was the fear a century ago with the 1923 play “The Adding Machine” by Elmer Rice. And that sentiment still holds true today with many ...