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
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 Line drawing Car Retarder Speed control68 viewsApr 22, 2017
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 Drawing for Ad - Consolidate Control of Interlockings69 viewsApr 22, 2017
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 Drawings for Ad - Consolidate Control of Interlockings74 viewsApr 22, 2017
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 Line drawing Moulded rubber coil Receiver71 viewsApr 22, 2017
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 R.R. map of U.S.A.71 viewsApr 22, 2017
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 Redispatching by C.T.C.79 viewsApr 22, 2017
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 Line drawing - How a Mechanical Facing Point Lock works76 viewsApr 22, 2017
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 Line drawing of Shelf Mounting for Plug-In Relay77 viewsApr 22, 2017
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 Line drawings - Coded track circuits Universal in application74 viewsApr 22, 2017
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 Map of C.T.C. machine Installations72 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."72 viewsApr 22, 2017
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 Map of C.T.C. machine Installations76 viewsApr 22, 2017
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 Drawing for advertisment R-2402 - "There's a better way to communicate today"79 viewsApr 22, 2017
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 Drawings for advertisment R-2402 - "There's a better way to communicate today"74 viewsApr 22, 2017
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 Drawing - "First Block System"84 viewsApr 22, 2017
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 Retarders - Let Air do the work74 viewsApr 22, 2017
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 Position of light signals85 viewsApr 22, 2017
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 Retarders - Let Air do the work74 viewsApr 22, 2017
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 Light indications of signals83 viewsApr 22, 2017
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 Positions of signal levers98 viewsApr 22, 2017
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 Positions of signals87 viewsApr 22, 2017
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 Signal Project Dollar80 viewsApr 22, 2017
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 Line drawings Track Circuits and Control Machine82 viewsApr 22, 2017
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 Line drawing of Highball Signal73 viewsApr 22, 2017
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 Copy negative of paste up of colored enlargement of Pocatello Yard78 viewsApr 22, 2017
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 "Union" Roller Bearings on long-railed switch points68 viewsApr 22, 2017
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 "Union" Roller Bearing on power operated switch70 viewsApr 22, 2017
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 "Union" Roller Bearings on mechanically interlocked switch69 viewsApr 22, 2017
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 "Union" Roller Bearing on hand-operated switch70 viewsApr 22, 2017
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 Line drawing of 95-A-346172 viewsApr 22, 2017
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 Line drawing of 95-A-378780 viewsApr 22, 2017
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 C.T.C. Map68 viewsApr 22, 2017
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