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Most viewed - UR Interlocking
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 Removing plug in type relay65 viewsElizabethport
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 UR Machine - Santos Dumont64 views
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 Compressors at 13th St. Interlocking, Chicago Subway, C.R.T.64 views
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 Power panel in Compressor Room, 13th St. Interlocking64 views
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 Train from Newark held at signal 28 while WB main passenger is on crossing64 viewsElizabethport
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 Rear of main terminal board in RU tower 64 viewsElizabethport
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 Rectifiers, power panel, transformers, and relays in corner of RU tower64 viewsElizabethport
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 Instrument Case Wired Complete "UR" interlocking -- Brazil63 views
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 Santos Jundiai R.R. Brazil UR Control Machine63 views
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 Compressors at 13th St. Interlocking, Chicago Subway, C.R.T.63 views
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 Kansas City Terminal UR Interlocking (Relay Racks)63 views
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 Kansas City Terminal UR Interlocking (#52 way Plug Connectors)63 views
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 Kansas City Terminal63 views
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 Rectifier panel RU tower63 viewsElizabethport
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 Replacing plug-in type relay63 viewsElizabethport
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 Main terminal board RU tower63 viewsElizabethport
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 Multiplex Equipment62 views
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 Central of Brazil R.R. - Bel'm (UR)62 views
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 Central of Brazil R.R. - Pavauna62 views
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 Kansas City Terminal UR Interlocking (Relay Racks)62 views
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 Kansas City Terminal UR Interlocking (Battery Charging Rects)62 views
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 Kansas City Terminal UR Interlocking (Concrete manhole for Cable)62 views
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 Kansas City Terminal UR Interlocking (Plug Connected Cables)62 views
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 Kansas City Terminal62 views
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 Instrument case in eastbound home signal bridge leg62 viewsElizabethport
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 Hudson & Manhattan RR - Caisson Installation62 views
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 Central of Brazil R.R. - Bel'm (UR)61 views
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 Kansas City Terminal UR Machine Tower #361 views
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 Kansas City Terminal UR Machine Tower #361 views
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 Rectifiers, power panel, transformers, and relays in corner of RU tower61 viewsElizabethport
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 Back of relay racks, Elizabethport61 views
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 Central of Brazil - Entre Rios60 views
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