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 ...

If your adding machine ribbon is running out of ink, save money by re-inking it instead of purchasing a replacement. Re-inking the old ribbon is also better for the environment because it cuts down on ...

This ten-key printing manual adding machine has an black iron and glass frame with a steel keyboard painted green. Two rows of white plastic number keys are marked with digits and their complements ...