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SIGNAL (RED) AHEAD
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Quiet Zone sign [01]
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Quiet Zone sign [02]
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"DANGER: OBSTRUCTION" sign [02]
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"DANGER: OBSTRUCTION" sign [01]
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Speed hump sign
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Siren at United Steam Fire Engine Company #3
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Federal Signal Model 5 siren on the Hanover Street Bridge
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"Blind persons crossing ahead"
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"END" sign on Bentley Street