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Great Northern Railway Historical Society Blueprint Collection JSBP3131, Leavenworth, Washington, undated. Map.

Great Northern Railway Historical Society Blueprint Collection JSBP3130, Leavenworth, Washington, 1938. Great Northern Blueprint Number X14-308-5, Extension of Transformer Substation. Wiring Diagrams. Interstate Commerce Commission Account Number 30, Power Substation Buildings. Other ICC account descriptions: ICC Account Number 29, Substation.

Great Northern Railway Historical Society Blueprint Collection JSBP3129, Leavenworth, Washington, 1937. Great Northern Blueprint Number X14-308-1, Extension of Transformer Substation. General Location Plan. Interstate Commerce Commission Account Number 30, Power Substation Buildings. Other ICC account descriptions: ICC Account Number 29, Substation.

Great Northern Railway Historical Society Blueprint Collection JSBP3128, Leavenworth, Washington, 1937. Great Northern Blueprint Number X14-308-6, Extension of Transformer Substation. Switchboard. Interstate Commerce Commission Account Number 30, Power Substation Buildings. Other ICC account descriptions: ICC Account Number 29, Substation.

Great Northern Railway Historical Society Blueprint Collection JSBP3127, Leavenworth, Washington, 1937. Great Northern Blueprint Number X14-308-3, Extension of Transformer Substation. Arrangement of Apparatus. Interstate Commerce Commission Account Number 30, Power Substation Buildings. Other ICC account descriptions: ICC Account Number 29, Substation.

Great Northern Railway Historical Society Blueprint Collection JSBP3126, Leavenworth, Washington, 1937. Great Northern Blueprint Number X14-308-2, Extension of Transformer Substation. Foundation Plan and Outdoor Conduits. Interstate Commerce Commission Account Number 30, Power Substation Buildings. Other ICC account descriptions: ICC Account Number 29, Substation.

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.

Great Northern Railway Historical Society Blueprint Collection JSBP3124, Leavenworth, Washington, 1927. Great Northern Blueprint Number XA-3 Sheet 12, Warehouse - Lighting and Shelving. Floor Plan. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Warehouse.

Great Northern Railway Historical Society Blueprint Collection JSBP3123, Leavenworth, Washington, 1927. Great Northern Blueprint Number XA-3 Sheet 11, Warehouse - Detail of Section of Pigeon Holes. Elevations. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Warehouse.