Group of Nashville Chattanooga & St. Louis Railway Rule Books and Rule Test Books. Includes two 1906 rule books, 1943 Centralized Traffic Control rules book. 1923 Maintenance of Way rules book, and two 1925 signaling system rules books. Also included and possibly most interesting is a group including a 1952 approved lecture coving revised rules of the transportation department, 1942 rules examination questions, 1952 rules examination questions, and a packet of questions omitted from the rules examination test. See photos for best description.