Great Northern Railway Historical Society Blueprint Collection JSBP3125, Leavenworth, Washington, 1937. Great Northern Blueprint Number X14-308-4, Extension of Transformer Substation. Steel Details. Interstate Commerce Commission Account Number 30, Power Substation Buildings. Other ICC account descriptions: ICC Account Number 29, Substation.
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A Pacific Northwest Railroad Archive subject, encompassing engineering drawings associated with electrification of railroad locomotives and related electric power generation and transmission facilities.