Old adding machine from the ‘20s not worth much more than memories Fri., March 18, 2005 This Little Giant adding machine and others like it were common tools of merchants in the early part of ...

The modern adding machine using geared wheels, has been credited to a young Blaise Pascal in the mid-1600s; the 19-year-old Pascal likely made the device to help his father, a clerk, in his work – and ...