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Featuring Union Switch & Signal equipment photos
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Interurban Electric Railway
77 views
Four Indication Code Cab Signal Equipment Box - CRR of NJ.
77 views
Type E Four Indication Code Cab Signal Equipment Box - PRR
77 views
Train approaching automatic signal NJ54 on eastbound track approaching City Hall Station
77 views
Delaware River Joint Commission
N.Y.C.T.A. Times Square Grand Central Shuttle Train Automation Control Equipement Rack
77 views
NYCTA 529 Indication System (Line Pulsing Panel)
77 views
Plymouth Locomotive Works - Remote Control Console (front close-up)
77 views
Rear of Relay Rack in Relay Room 13th St. Interlocking, Chicago Subway, CRT
77 views
Highway crossing installation between Hammond, Ind. and Griffith on the Erie Railroad
77 views
N.Y.S. & W. RR (WS to Croxton) 3'-3" Relay Case
77 views
S. Pac. Instrument Houses
77 views
Part of north throat - Cincinnati Union Terminal
77 views
Helper engine cut off from eastbound train - Allegheny Summit CTC - C. & O.
77 views
Looking west at Tower "A" - Allegheny Summit CTC - C. & O.
77 views
Highway Crossing Gate Mechanism
77 views
HC-100 Highway Crossing Signal Unit
77 views
HC-81 Highway Crossing Unit
77 views
Parts of Highway Crossing Signal
77 views
HC-81 Highway crossing signal
77 views
Mounting base PTV-42 Relay - showing old style soldered type terminals
77 views
ORP-66 Plug-In Overload Relay A.C. switch
77 views
SL-26 Electric Switch Lock as applied to T-20 Switch Stand
77 views
SL-8 Electro-Mechanical Switch Lock
77 views
Miniature Relay Style H
77 views
Pipeline Panel Close-up
77 views
Columbia Gas of Ohio
77 views
Columbia Gas of Ohio
77 views
Humble Pipeline (Office Rack A)
77 views
RE-2
77 views
77 views
Diagram- Save yard space by utilizing curved track for retarders
77 views
How a Mechanically Rectified Decoding Circuit works. Bulletin 157
77 views
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