Magnetic Signal Company
[1] Its general offices and factory were located at 3355 East Slauson Avenue in Vernon, an industrial area just south of downtown Los Angeles.In its heyday, the Magnetic Signal Company not only manufactured wigwag signals, but also the alternating-flasher type [2] railroad signals, reflectorized "Railroad Crossing"[3] signs, button reflectors for highway signs, traffic island beacons, curb beacons, flasher relays, automobile and bicycle reflectors, and even a "Portafount" portable drinking fountain.The company had sales offices in New York, Chicago, St. Louis, Salt Lake City, Seattle and Washington, D.C.What is known is that it soon became a subsidiary of the American Brake Shoe and Foundry Company of Los Angeles, which also owned National Bearing Metals Corporation[4] and the Canadian Ramapo Iron Works.It remained a subsidiary of American Brake Shoe until it was purchased by the Griswold Signal Company of Minneapolis, Minnesota, sometime in the late 1940s.