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Featuring Union Switch & Signal equipment photos
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Relay Case Wired Complete and Strapped for Shipment. Double Automatic Signal Location - Seaboard
89 views
SN Interlocking - Leavittsburg, Ohio - Erie Railroad
89 views
Model of Relay House Prepared for Union Pacific
89 views
HM Relay House Interior (D.M.&I. RR)
89 views
Two-frequency I.T.C. Equipment for P.R.R. - Separable Connector - Locomotive portion Complete
89 views
Two lever operating stand with SL-20 Electric Locks for Hand Operated Switches in platform area - Cincinnati Union Terminal
89 views
#53 southbound passenger train, passing north end Weston - No. Lima to Roachton CTC - B. & O. R.R.
89 views
Rock Island Train at Polo, Mo. - CTC installation - Rock Island - Milwaukee
89 views
PTV-42 Relay - Glass cover on and removed
89 views
MOD 1-A Computer URR
89 views
Solid State Power Sub Station equipment LIRR
89 views
Schmitt General Purpose Trigger Board
89 views
PCB General Purpose Boards
89 views
PCB General Purpose Boards
89 views
PCB General Purpose Boards
89 views
Type L Form 510 Code Control System for single station
89 views
Coding Unit for Sequence Code Control System
89 views
Huntington - "DK"
88 views
Glencoe to Milbank
88 views
Signal Tower to S.
88 views
Fort Worth - Dallas
88 views
CTC machine
88 views
(unknown)
Erie Crossing
88 views
Peoria - Farmdale
88 views
86th St. Auxiliary Switch Indicator Panel
88 views
7'-6" Style C (Bowling Green)
88 views
Brayton Ave.
88 views
Ridgefield Park CTC 2'-6" Cabinet (back)
88 views
CTC machine, Russian R.R.
88 views
CTC installation
88 views
New House No. 25 Nonoalco Crossing
88 views
Pittsburgh Jct. - Connellsville
88 views
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