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Featuring Union Switch & Signal equipment photos
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PRR (Kinzua Dam) - 17-1/2" RS Case (front)
46 views
5'x7' Relay House - Santa Fe, Mohave, Remote Control Installation
46 views
P.R.R. - 8'x16' Relay House
46 views
Seaboard 6'x10' Relay House
46 views
C.M.St.P. & P. R.R. - Bensonville Relay House
46 views
Relay House & Battery House - U.P. R.R.
46 views
Inside Relay house - T.R.R.A. of St.L.
46 views
Style "ST" Dynamotor Unit
46 views
Turkish Switch Machine
46 views
Turkish Switch Machine
46 views
U-7 Switch Circuit Control
46 views
Spring switch installation on the C.M.St.P. & P.
46 views
TVL Radio Equipment Special for American Bridge Co. to U.S. Steel
46 views
TVL Equipment (back)
46 views
Portable Transistorized Carrier Phone
46 views
Battery Charger E-60 Mine Phone
46 views
6 Character Air Craft Instrument for Bendix Radio
46 views
Numill Autometrics Application of Union Readall Readout Instruments
46 views
Gulf Interstate Pipeline Machine
46 views
Gulf Interstate Pipeline Machine
46 views
Gulf Interstate Pipeline Machine
46 views
Gulf Interstate Pipeline Machine
46 views
Hanna Coal Company (Cadiz, Ohio) Rack (front)
46 views
Hope Natural Gas Company (Clarksburg Office Panel)
46 views
Hope Natural Gas (Racket Station Panel) Front
46 views
Humble Oil Co. (Office & Field Control Panels)
46 views
Humble Oil Co. (Office & Field Control Panels)
46 views
Humble Oil Co. (Control Console for Pipeline) (front)
46 views
Humble Oil Co. (Control Console for Pipeline) (back open)
46 views
Humble Pipeline Co. (Humble-Ballinger) Console (front)
46 views
Humble Pipeline (Office Rack C)
46 views
Kansas Neb. Natural Gas Co. Cabinet (Pelco Station) (back)
46 views
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