RRSignal.com Photo Gallery
Featuring Union Switch & Signal equipment photos
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Fixed SQL errors - More photos coming in 2022
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Portable Carrier Telephone Unit
106 views
HDNA-OC Navy Phone with front and unit removed
106 views
Carrier Frequency Telephone (DU-35086) (Turkey)
106 views
Chicago Transit Authority Portable Communication System plug complete wiring and plug.
106 views
Highway Crossing AFO Transmitter
106 views
AFO Vital Receiver (front view)
106 views
HM Relay House Interior (D.M.&I. RR)
106 views
South End Haskins, Ohio - No. Lima to Roachton CTC - B. & O. R.R.
106 views
North end Haskins, Ohio - No. Lima to Roachton CTC - B. & O. R.R.
106 views
106 views
Centralized Traffic Control Machine Drawn from Photo of Union Pacific's Las Vegas to Yermo Machine
106 views
Danville Jct.
105 views
West-Wye C.T.C
105 views
North Milwaukee, Wis.
105 views
2-1/2' Machine - River Junction
105 views
(back closed)
Direct wire C.T.C. machine
105 views
Allerton - Eldon
105 views
CTC Cab. (96th interlocking)
105 views
86th St. Auxiliary Switch Indicator Panel
105 views
Vine St.
105 views
TCC Machine at Tucson
105 views
Newburg-Sleeper C.T.C. machine
105 views
CTC machine - Edwards to Fort Scott
105 views
Waynoka Canadian Installation
105 views
Canadian Yard-Amarillo-Waynoka
105 views
Freson Mormon
105 views
Linha to Auxilian - TCC
105 views
Becks Run - Type F Interlocking
105 views
South throat from instrument room
105 views
Looking north from station platform - Boston terminal
105 views
Equipment box on running board of locomotive - Columbus Shops
105 views
Receiver mounted ahead of pony truck, Penna. locomotive at Columbus Shops
105 views
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