The first crossing is located on North Carbon Street, Marion, Illinois, and it has a pair of very old crossing signals (the backgrounds on the lights need re-painting) and on one of the cantilevers, there is a small set of traffic light sections being used as indicators to let the engineers know that the signals are functioning. Four of the sections appear to be Eagle Flat-back sections while the other two are Crouse-hinds Art-deco sections.
Google Maps Link.
The second crossing is located at the intersection of Main Street and McLaren Street, in Marion, Illinois,. I was looking around at the crossing when Inoticed a pair of art-deco sections mounted on one of the cantilever signals there. They probably serve the same purpose as the flat-back and art-deco sections at the first crossing.
Google Maps Link.
I can post screen shots for those of you who don't like to go to Google Maps.