. Electric railway journal . COLOR LIGHT SIGNALS TO MEET EVERY OPERATING REQUIREMENT MODELS 13, 14 & BOTH DAY AND NIGHT INDICATIONSTWO AND THREE LENS SIGNALSRanges under most exacting conditions from 500 to 2000feet, depending on model used. Minimum power requirementsfor desired range. High transmission or deep color lenses, arranged formaximum efficiency.

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