The Hagelin M-209-B Rotor Machine

This machine was produced in several forms, including a US Navy version called the CSP-1500. It has six rotors, and offered only low security for its time. Further information on these machines is available here.

Picture of the Hagelin M-209-B machine Picture of the Hagelin M-209-B machine

The information at this site is Copyright 1995, 1996, International Association for Cryptologic Research.