Inside of the 1958 Crouse Hinds Model "M" is very clean. The entire signal was completely restored in the summer of 2006. The reflectors are all hydroformed aluminum, and the lenses are all glass Crouse Hinds T3's
No. Two signal faces minimum are allowed by the MUTCD. Fixed four ways became obsolete when it was easier to just manufacture and purchase adjustable signals and connect them with brackets and pipes.
well Idabel,Oklahoma still has a few intersections in it's downtown that i recall are still controlled by Single Fixed-Face Four Ways....they must not enforce it or care.