RRSignal.com Photo Gallery

Featuring Union Switch & Signal equipment photos
No touchups - No watermarks - Enjoy!
Fixed SQL errors - More photos coming in 2022

Most viewed
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 Half Case Crystal Relay 30 views
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 Model 900 One-Sixth-Size Crystal Case Relay - Compared with Dime30 views
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 Model 900 One-Sixth-Size Crystal Case Relay30 views
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 Model 903 and 904 Crystal Case Relays30 views
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 T.A.T.T. Transmitter Mine Control System Transmitter for Mine Safety Appliance Co. (closed)30 views
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 64 Character Standard Militarized Readall Instrument (original)30 views
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 3 Crystal Case Relays, 1 Miniature Relay, 1 64 Character Readall (for news release)30 views
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 Mid-America Pipeline Control Panel (Conley Station)30 views
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 PEMEX Engine Sequence Test Indication Panel (back)30 views
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 Phillips Pipe Line Company - 540 Solid State System - Cassoday Office Equipment Rack30 viewsClose up of printed circuit boards installed in rack
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 Phillips Pipe Line Company - 540 Solid State System - Special Printed Circuit Boards30 views
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 Phillips Pipe Line Company - 540 Solid State System - Typical Printed Circuit Boards30 views
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 Service Pipeline Co. Drumright-Blake Okla. (Back of rack)30 views
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 Service Pipe Line, No. Mo. (Freeman Dispatch) Office Control Machine (front view, with CTC cabinet)30 views
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 Service Pipe Line, No. Mo. - Rothville Field Location Cabinet (front view)30 views
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 Service Pipeline (Freeman LaPlata) Engineers Control Panel (front)30 views
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 Service Pipe Line Co. N. Mo. Division (Manhattan CTC Cabinet) (back)30 views
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 Service Pipeline (Freeman) Manhattan Ext. Dispatch Cab. (front)30 views
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 Control desk and diagram at Sandbach30 views
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 Central of Brazil - Entre Rios29 views
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 Central of Brazil - Entre Rios29 views
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 From Yardmasters office29 views
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 From Yardmasters office29 views
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 Car in master retarder29 views
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 Cars approaching intermediate retarders29 views
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 Automatic Switching Machine29 views
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 29 views
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 Retarder Control Machine29 views
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 Retarder Control Machine29 views
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 Hamlet Yard29 views
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 Hamlet Classification Yard29 views
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 Hills Park Yard29 views
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