The Chicago Union Station (CUS) is an intercity and commuter rail terminal. It served as the terminus for 8 intercity rallroads prior to the formation of Amtrak, the current owner of the property. The current CUS was built in 1925 to replace the original structure erected in 1881. For sale is a CUS rule book entitled "Standard Examination on the Rules of the Operating Department"; it is dated 1952.The book measures appx 6x4 inches, contains 72 pages, has a hard cover, and the content pages are a mid-grade paper. Contents include questions regarding General Rules; Train Rules; Train Starting System; Trains & Engines Backing Out of Station; Automatic Block System; Interlocking; more.