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K-50 Route Selection Control Machine Hump Bldg. C
53 views
West Dual Hump
K-50 Route Selection Control Machine Hump Bldg. B
53 views
East Dual Hump
K-50 South End Receiving Yard Control Machine
53 views
Printed Circuit Component Board
53 views
Validity Detector B
Pier 15 Car Retarder
53 views
Car Retarder System Control Machine "C"
53 views
C.&O. R.R. - Stevens Yard
53 views
Cab signal
53 views
Westchester Yard - N.Y.B.T.
53 views
Burhe - Pelham Bay - Dispatchers Track Indicator - N.Y.B.T.
53 views
111th Street U.R. Machine - N.Y.T.A.
53 views
111th Street U.R. Machine - N.Y.T.A.
53 views
Carryphone Internal View Showing Transmitter
53 views
Carryphone
53 views
Carryphone case removed to show C Battery Pack
53 views
10AM 1 Foot Board Control Amplifier
53 views
Experimental Model 14H81C Carryphone
53 views
Experimental Model 14H81C Carryphone
53 views
Carryphone Antenna Adapter plus
53 views
Model 2 - Carryphone
53 views
Carryphone II
53 views
Instrument Cases - Etna, PA
53 views
First Installation of Individual Carrier Units. - West End of Aspinwall Interlocking - Etna, PA - PRR
53 views
P.R.R. Highway Crossing Case at Sandusky St. - Bucyrus, Ohio
53 views
Sample Relay Case (close up of front)
53 views
PRR RS Case 9'-8" (front)
53 views
Union Pacific R.R. - extra #1410 from inside Relay House at Madena
53 views
C.M.St.P. & P. R.R. - Airline Yard Relay House
53 views
I.T.C. Equipment Box for EMD Diesel Engines with units removed
53 views
Back view of Control Station with door open to show wiring
53 views
Receiver Unit with case removed to show interior
53 views
Showing how operating lever is used on Neoprene case Hand Microphone
53 views
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