Download or read book Two Centuries of Railway Signalling written by G. M. Kichenside and published by Haynes Publishing. This book was released on 1998 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: A history of the development of railway signalling, from the earliest days through the introduction of the disc and crossbar signal, to semphores and color lights and the modern communications systems of the 1990s.