Sante Fe signals circa 1950

Hi, does anyone know of a good link / book that describes Sante Fe signals around the early 1950s? I'm not looking for anything TOO in depth, just then "standard" signals used and what their indications mean.
Thanks in advance! Scott


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Give this a try
http://www.atsfrr.com/links/atsf/signals.htm Bob Russell Orange Belt Lines http://members.aol.com/DAYLIGHT99/OBL.html


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