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Last additions - Philadelphia Subway
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 Train Dispatcher for Subways (Old style model used in Phila. Subway)80 viewsApr 19, 2012
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 Train Dispatcher for Subways (Old style model used in Phila. Subway)70 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 Dispatcher for Subways (Old style model used in Phila. Subway)88 viewsApr 19, 2012
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 Train approaching the switch at east end of crossover no. 1766 viewsDelaware River Joint CommissionMar 05, 2012
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 Application of the 1000 amp. impedance bonds located on span section of bridge66 viewsDelaware River Joint CommissionMar 05, 2012
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 Arrangement of switches and cabinet containing the ground detector apparatus, location T4, Camden anchorage71 viewsDelaware River Joint CommissionMar 05, 2012
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 City Hall Interlocking Machine Room, Camden, N.J.101 viewsDelaware River Joint CommissionMar 05, 2012
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 Train approaching automatic signal NJ54 on eastbound track approaching City Hall Station77 viewsDelaware River Joint CommissionMar 05, 2012
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 Arrangement of conduit pipes and location of instrument cases and stop valves70 viewsDelaware River Joint CommissionMar 05, 2012
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 City Hall Compressor Room68 viewsDelaware River Joint CommissionMar 05, 2012
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 Train approaching the switch at east end of Crossover no. 1775 viewsDelaware River Joint CommissionMar 05, 2012
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 Three position automatic signal and stop mechanism within Camden Subway55 viewsDelaware River Joint CommissionMar 05, 2012
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 Arrangement of signals, relay boxes, stop valves, and cable runs, Camden Portal56 viewsDelaware River Joint CommissionMar 05, 2012
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 General arrangement of signal NJ11, westbound auto. sig. on approach span56 viewsDelaware River Joint CommissionMar 05, 2012
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 Arrangement of automatic signal NJ957 viewsDelaware River Joint CommissionMar 05, 2012
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 General view taken from Yard tracks at Camden, showing Camden portal of the subway52 viewsDelaware River Joint CommissionMar 05, 2012
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 Automatic signal NJ-10 on eastbound track approaching Camden55 viewsDelaware River Joint CommissionMar 05, 2012
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 General arrangement of relay cases, signal, junction boxes, impedance bonds at interlocking approach signal R462 viewsDelaware River Joint CommissionMar 05, 2012
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 Rectifier at Fairmount Ave. 47 viewsRidge Ave. SubwayMar 05, 2012
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 View north from Spring Garden St. Station48 viewsRidge Ave. SubwayMar 05, 2012
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 Third Rail attachments, junction boxes, relay cases, and conduits under Fairmount tower47 viewsRidge Ave. SubwayMar 05, 2012
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 Compressor switch board at Market St.44 viewsRidge Ave. SubwayMar 05, 2012
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 Rectifiers at Market St.47 viewsRidge Ave. SubwayMar 05, 2012
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 Compressors at Market St.45 viewsRidge Ave. SubwayMar 05, 2012
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 Relay Cabinets at Market St.48 viewsRidge Ave. SubwayMar 05, 2012
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 CTC machine at Fairmount Ave.61 viewsRidge Ave. SubwayMar 05, 2012
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 Relay cabinets, Fairmount Ave.51 viewsRidge Ave. SubwayMar 05, 2012
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 CTC machine, Fairmount Ave.60 viewsRidge Ave. SubwayMar 05, 2012
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 Looking south to Market Street Station49 viewsRidge Ave. SubwayMar 05, 2012
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 H.T. Location46 viewsRidge Ave. SubwayMar 05, 2012
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 Condensers at Market Street55 viewsRidge Ave. SubwayMar 05, 2012
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