Mainline Signal – 3 Aspect
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Mainline Signal 2 Aspect
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Mainline Signal Single Aspect (Red)
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Mainline 3 Aspect (Asia)
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Mainline Signal Tri-Colour
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Mainline Signal Bi Colour
(Red Green)
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Mainline Signal Bi Colour
(Yellow Red)
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Mainline Signal Bi Colour
(Green Yellow)
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