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Relay Case at elec. lock location at Sarah Furnace Crossover - PRR CTC installation - Red Bank - Oil City60 views
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Russian Relay Case40 views
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Russian Relay Case36 views
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Russian Relay Case65 views
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Instrument Case39 views
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Gulf Interstate Pipeline Machine39 views
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Gulf Interstate Pipeline Machine36 views
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Gulf Interstate Pipeline Machine38 views
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Gulf Interstate Pipeline Machine38 views
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Gulf Interstate Pipeline Machine36 views
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Russian 3-foot Relay Case38 views
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6'-9" Instrument Case Wired Complete - "UR" Interlocking - Brazil43 views
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6'-9" Instrument Case Wired Complete and Strapped for shipment - "UR" Interlocking - Brazil43 views
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Instrument Cases - Etna, PA73 views
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First Installation of Individual Carrier Units. - West End of Aspinwall Interlocking - Etna, PA - PRR54 views
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First Installation of Individual Carrier Units. - West End of Aspinwall Interlocking - Etna, PA - PRR40 views
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4'-11" Sheet Steel Instrument Case43 views
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4'-11" Sheet Steel Instrument Case36 views
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Pennsylvania Railroad Double Track Highway Crossing RS Case 6'8" (front)62 views
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Pennsylvania Railroad Double Track Highway Crossing RS Case 6'8" (back)41 views
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Instrument case - coded track circuit - Bradford Ind. - PRR68 views
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Instrument case at Weller Yard Kelsa - N&W CTC50 views
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Cast Iron Foundation with Instrument Case48 views
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Cast Iron Foundation with Instrument Case40 views
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Cast Iron Foundation with Instrument Case40 views
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