SRS is Sperry Rail Service.
Tonight we are going to start a new series. This is the Sperry school of equipment. The course is designed to allow the viewer a chance to see the various types of testing vehicles that we have / had in our fleet. We will start out with the rail-bound equipment. These cars are still in service today in the US, Canada, and Mexico. The crews stay on the cars 24/7.
SRS 149 - newest car. Built 1980 in Brooklyn, IL with a Hildebrandt Body. 
SRS 124 at South Frierson, LA ex LV 24
SRS 129 & SEPTA 9012 at night in Philadelphia, PA ex LV 29
SRS 129 in Philadelphia, PA ex LV 29