20092010JMRI DickBronson PaulBender 1 2010-01-01 DB Initial version 2 2010-01-12 PAB Adapted from NYCS-1937 SLSF Triple searchlight signal with triangle plackard As described in the July 1978 Revision of the St. Louis San Francisco Railway Company publication "RULES for the Maintenance of way and Structures" effective July 1,1973, chapter titled Description of Signals. As noted in the source material, these rules are rules of the Frisco Transportation department. Appearances for a three-searchlight signal head with a traingular plackard Clear green red red Page 16 Advance Approach yellow yellow red Page 16 Approach Limited yellow green red Page 16 Approach yellow red red Page 16 Diverging Clear red green red Page 18 Diverging Approach red yellow red Page 18 Restricting red red yellow Page 18 Restricting lunar red red Page 18 Restricting red lunar red Page 18 Restricting red red lunar Page 18 Stop red red red Page 18