This signal bridge will span two tracks, lets say East and West mains. The signal heads, two per mast assembly, face East and West. The color aspects for the upper signal head are red then yellow, the lower signal head are yellow then green, i.e, in summary red-yellow-yellow-green. What type of track configuration, East and West, warrants this signal head and color light aspects and track occupancy?
This signal bridge, in my opinion, is the most applicable for a 1940's thru Mid-1960's layout I am building, I am considering replacing the colored plastic lenses with colored LED's and making the signal bridge operational, this bridge was been around a long time, I received one from W.F.Woolworth in 1955.
John
