Great Northern Railway Historical Society Blueprint Collection JSBP6255, System Wide, 1905. Great Northern Blueprint Number A 503, Standard Disant Switch Semaphore. Elevations and Material List. Interstate Commerce Commission Account Number 27, Signals and Interlockers. Other ICC account descriptions: ICC Account Number 27, Signal.
Elements area
Taxonomy
Code
Scope note(s)
A Pacific Northwest Railroad Archive subject. An engineering drawing of a railroad structure or device used for signaling.
Source note(s)
Display note(s)
Hierarchical terms
Railroads--Signaling drawings
Railroads--Signaling drawings
Equivalent terms
Railroads--Signaling drawings
UF Railroads--Signaling, Signals, Signaling, Signals, Signaling