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Last additions - Philadelphia Subway
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 Train Dispatcher for Subways (Old style model used in Phila. Subway)76 viewsApr 19, 2012
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 Train Dispatcher for Subways (Old style model used in Phila. Subway)65 viewsApr 19, 2012
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 Train Dispatcher for Subways (Old style model used in Phila. Subway)79 viewsApr 19, 2012
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 Train Dispatcher for Subways (Old style model used in Phila. Subway)82 viewsApr 19, 2012
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 Train approaching the switch at east end of crossover no. 1765 viewsDelaware River Joint CommissionMar 05, 2012
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 Application of the 1000 amp. impedance bonds located on span section of bridge61 viewsDelaware River Joint CommissionMar 05, 2012
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 Arrangement of switches and cabinet containing the ground detector apparatus, location T4, Camden anchorage69 viewsDelaware River Joint CommissionMar 05, 2012
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 City Hall Interlocking Machine Room, Camden, N.J.98 viewsDelaware River Joint CommissionMar 05, 2012
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 Train approaching automatic signal NJ54 on eastbound track approaching City Hall Station73 viewsDelaware River Joint CommissionMar 05, 2012
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 Arrangement of conduit pipes and location of instrument cases and stop valves69 viewsDelaware River Joint CommissionMar 05, 2012
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 City Hall Compressor Room66 viewsDelaware River Joint CommissionMar 05, 2012
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 Train approaching the switch at east end of Crossover no. 1772 viewsDelaware River Joint CommissionMar 05, 2012
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 Three position automatic signal and stop mechanism within Camden Subway54 viewsDelaware River Joint CommissionMar 05, 2012
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 Arrangement of signals, relay boxes, stop valves, and cable runs, Camden Portal55 viewsDelaware River Joint CommissionMar 05, 2012
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 General arrangement of signal NJ11, westbound auto. sig. on approach span53 viewsDelaware River Joint CommissionMar 05, 2012
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 Arrangement of automatic signal NJ955 viewsDelaware River Joint CommissionMar 05, 2012
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 General view taken from Yard tracks at Camden, showing Camden portal of the subway50 viewsDelaware River Joint CommissionMar 05, 2012
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 Automatic signal NJ-10 on eastbound track approaching Camden53 viewsDelaware River Joint CommissionMar 05, 2012
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 General arrangement of relay cases, signal, junction boxes, impedance bonds at interlocking approach signal R459 viewsDelaware River Joint CommissionMar 05, 2012
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 Rectifier at Fairmount Ave. 45 viewsRidge Ave. SubwayMar 05, 2012
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 View north from Spring Garden St. Station44 viewsRidge Ave. SubwayMar 05, 2012
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 Third Rail attachments, junction boxes, relay cases, and conduits under Fairmount tower44 viewsRidge Ave. SubwayMar 05, 2012
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 Compressor switch board at Market St.40 viewsRidge Ave. SubwayMar 05, 2012
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 Rectifiers at Market St.44 viewsRidge Ave. SubwayMar 05, 2012
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 Compressors at Market St.42 viewsRidge Ave. SubwayMar 05, 2012
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 Relay Cabinets at Market St.44 viewsRidge Ave. SubwayMar 05, 2012
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 CTC machine at Fairmount Ave.56 viewsRidge Ave. SubwayMar 05, 2012
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 Relay cabinets, Fairmount Ave.46 viewsRidge Ave. SubwayMar 05, 2012
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 CTC machine, Fairmount Ave.58 viewsRidge Ave. SubwayMar 05, 2012
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 Looking south to Market Street Station47 viewsRidge Ave. SubwayMar 05, 2012
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 H.T. Location44 viewsRidge Ave. SubwayMar 05, 2012
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 Condensers at Market Street52 viewsRidge Ave. SubwayMar 05, 2012
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