Traffic Signal Collection
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The last production of Marbelite signals was in the 1970s. Their Model TE-19408 underwent some final revisions to make it more suitable and durable for mounting back plates to the signal. The signal's visors and other features had lost Marbelite's uniqueness and became more conventional in appearance.
With the advent of polycarbonate signals and the corporate mergers and buy-outs that ran through the traffic signal industry in the 1970s, this icon of American traffic signal devices disappeared from the scene, although many of their durable signals remain in service.