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Signage just inside the front door of the exchange.
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Coat hooks in the Technicians' locker-room?
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Extended alarms.
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Extended alarms
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Westinghouse "Sentinel"circuit breaker
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Fire exit sign
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Fire signage
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Alarm light panel
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Fault counters on text equipment
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Relay coils
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IMG_6922
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Test desk, at the end of the MDF
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Test equipment
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IMG_6926
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IMG_6927
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Handwritten sign on a door