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Featuring Union Switch & Signal equipment photos
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Pemex Pipeline (Pocket Control)
49 views
Pemex Pipeline (Pocket Control)
49 views
Phillips Pipe Line Company (Office Cabinet) (front)
49 views
Phillips Pipe Line Company (Field Cabinet) (back)
49 views
Pipeline Surge Control Shutdown
49 views
Surge Shut-down System Pipe Line Oil
49 views
Lawson Digital Clock for Pipe Line System
49 views
Tidewater Associated Oil Co. (Front Panel open showing controls)
49 views
R3Q412 Rectifier
49 views
Rectifier R E I C
49 views
Pencil Type Rectifier
49 views
Pencil Type Rectifier
49 views
Selenium Rectifier
49 views
RX-11
49 views
RX-21Rectifier
49 views
RP-41
49 views
Mamouth to Mobridge
48 views
Mamouth to Mobridge
48 views
Thornton
48 views
Wampum - B.& O. Jct. CTC machine - "J" tower
48 views
Eastbound B.& O. passenger train approaching locations R4, R6, Wampum
48 views
Westbund train #33 at B.& O. Jct. (signal L-20 to right)
48 views
Westbound passenger train No. 33 at B.& O. Jct.
48 views
Rail connection, Wampum, New Castle Jct.
48 views
Lecheria looking south into CTC territory, signal I-50 in right foreground
48 views
Signal D-20
48 views
Switch 25 - Nonoalco
48 views
Savannah-Hamlet
48 views
Las Vegas to Yermo - CTC machine
48 views
Pocatello-Glenn's Ferry
48 views
La Grande-Huntington
48 views
Los Angeles-Riverside
48 views
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