RRSignal.com Photo Gallery

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

Last additions - admin
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 Line drawing Car Retarder Speed control63 viewsApr 22, 2017
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 Drawing for Ad - Consolidate Control of Interlockings65 viewsApr 22, 2017
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 Drawings for Ad - Consolidate Control of Interlockings70 viewsApr 22, 2017
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 Line drawing Moulded rubber coil Receiver67 viewsApr 22, 2017
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 R.R. map of U.S.A.68 viewsApr 22, 2017
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 Redispatching by C.T.C.75 viewsApr 22, 2017
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 Line drawing - How a Mechanical Facing Point Lock works71 viewsApr 22, 2017
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 Line drawing of Shelf Mounting for Plug-In Relay73 viewsApr 22, 2017
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 Line drawings - Coded track circuits Universal in application67 viewsApr 22, 2017
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 Map of C.T.C. machine Installations67 viewsApr 22, 2017
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 Line drawings for advertisment S-3730 "Union I.T.C. speeds car icing on the P.R.R."68 viewsApr 22, 2017
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 Map of C.T.C. machine Installations72 viewsApr 22, 2017
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 Drawing for advertisment R-2402 - "There's a better way to communicate today"75 viewsApr 22, 2017
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 Drawings for advertisment R-2402 - "There's a better way to communicate today"70 viewsApr 22, 2017
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 Drawing - "First Block System"79 viewsApr 22, 2017
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 Retarders - Let Air do the work69 viewsApr 22, 2017
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 Position of light signals80 viewsApr 22, 2017
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 Retarders - Let Air do the work69 viewsApr 22, 2017
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 Light indications of signals78 viewsApr 22, 2017
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 Positions of signal levers93 viewsApr 22, 2017
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 Positions of signals82 viewsApr 22, 2017
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 Signal Project Dollar75 viewsApr 22, 2017
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 Line drawings Track Circuits and Control Machine79 viewsApr 22, 2017
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 Line drawing of Highball Signal70 viewsApr 22, 2017
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 Copy negative of paste up of colored enlargement of Pocatello Yard73 viewsApr 22, 2017
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 "Union" Roller Bearings on long-railed switch points65 viewsApr 22, 2017
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 "Union" Roller Bearing on power operated switch66 viewsApr 22, 2017
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 "Union" Roller Bearings on mechanically interlocked switch66 viewsApr 22, 2017
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 "Union" Roller Bearing on hand-operated switch65 viewsApr 22, 2017
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 Line drawing of 95-A-346168 viewsApr 22, 2017
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 Line drawing of 95-A-378775 viewsApr 22, 2017
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 C.T.C. Map64 viewsApr 22, 2017
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