This old (poor quality) photo is a rare shot of a rail crossing of the 2 major electric powered interurban railways that operated in Oregon, (1908-1933). Taken at Greton, near Tigard, OR., the Oregon Electric Railway is shown coming from the upper right to the lower left, and crossing the Southern Pacific Lines "Red Electric" rail line, coming from the lower right to the upper left. Notice the crossing of each railway's overhead power supply wires and the series of fixtures to separate the 1200 volt DC trolley wire of the O.E. from the 1500 volt DC line of the S.P., they had to be insulated from each other! What really caught my attention are the "wire guards" mounted on each railway's high voltage poles. The steel frame "catchers" are attached to the poles below the wires and have their own insulators. Barely visible are attachments mounted on each wire to 'grab' the frame in case they break! The O.E. is using 60,000 volts AC and the S.P. line is 13,200, volts. AC. Some nice multipart insulators ( long gone, ) are M-4325 on the O.E. and M-2340 on the Red Electric. This crossing was removed by 1950 and the S.P. line still remains in diesel freight and commuter service.