Chicago Rapid Transit Company
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UR Interlocking machine with Towerman V.C.Lanier, South Portal or 18th St. Interlocking77 views
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UR Interlocking machine with Towerman V.C.Lanier, South Portal or 18th St. Interlocking81 views
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Signal location A-48 near South Portal, Chicago Subway - C.R.T.72 views
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Compressors at 13th St. Interlocking, Chicago Subway, C.R.T.71 views
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Compressors at 13th St. Interlocking, Chicago Subway, C.R.T.64 views
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Compressors at 13th St. Interlocking, Chicago Subway, C.R.T.63 views
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Compressors at 13th St. Interlocking, Chicago Subway, C.R.T.65 views
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Power panel in Compressor Room, 13th St. Interlocking68 views
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Power panel in Compressor Room, 13th St. Interlocking64 views
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Relay Room at 13th St. Interlocking, showing plug-in relays, RPQ rectifiers, and ground detector apparatus68 views
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Rear of relay rack in Relay Room, 13th St. Interlocking69 views
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Motorman (Charles R. Blade) operating tripper release at signal location A-18 and B-18, 13th St. Interlocking78 views
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Motorman (Charles R. Blade) operating tripper release at signal location A-18 and B-18, 13th St. Interlocking67 views
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Southbound train at signal location A-18 and B-18, 13th St. Interlocking74 views
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Southbound train at signal location A-18 and B-18, 13th St. Interlocking69 views
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G.E. Transformers, power panel, RPQ-41 Rectifiers and Relay panel in signal room AB-94 on continuous platform near Jackson.71 views
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Relays, transformers, and RPQ-41 rectifiers in signal room AB94 on continuous platform near Jackson.72 views
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Looking north from Jackson on Continuous Platform, showing signal location A-9374 views
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UR interlocking machine, North Porta - Chicago Subway & Elevated - C.R.T.73 views
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UR interlocking machine with 1st trick towerman, W.K.Wallace, North Portal79 views
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Plug-in relays in relay room, North Portal Interlocking74 views
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Rear of tranformer and terminal panel showing North Portal Interlocking75 views
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Transformer and terminal panels, North Portal Interlocking72 views
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Chicago Subway Interlocking machine - Dearborn Street85 views
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Chicago Subway Interlocking machine - Dearborn Street69 views
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Chicago Subway Interlocking machine - Dearborn Street68 views
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UR Interlocking Machine, State St. Subway, Chicago80 views
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UR Interlocking Machine, State St. Subway, Chicago73 views
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UR Interlocking Machine, State St. Subway, Chicago86 views
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UR Interlocking Machine, State St. Subway, Chicago68 views
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UR Interlocking Machine, State St. Subway, Chicago68 views
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UR Interlocking Machine, North Portal, Chicago Subway80 views
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