Regardless, by the time this ad ran in 1976, the PC and CNJ, which is listed in the ad, had disappeared into the new Conrail. A genuine Conrail end of train device. Always play it safe. Photo of a worn emblem on a Conrail police car. This is a sight we'll never get to see again now that CSX and NS have taken over the railroad.
Image is of entire shield.
Thumbnail shows only portion of full image. Rob shot the trailer in a Valley Forge industrial park after the CSX take over. I used to know the fellow, Dick, who did the detailing on this trailer. His shop was located in Spring Township in PA at the Country Fresh Laundromat, which he also owned. A flow chart of railroads comprising the Conrail system.