The Delbert Jacobson Collection holds primarily engineering drawings. Subjects include Seattle's King Street Station and other Pacific Northwest facilities of both the Northern Pacific Railroad Company and the Great Northern Railway Company (U.S.). Materials cover much of the twentieth century.

Great Northern Railway Historical Society Blueprint Collection JSBP2825, Interbay, Washington, 1949. Great Northern Blueprint Number 295-5804-6, Bridge #3.3 over Gn. General Plan Including Elevation View. Authorization for Expenditure 78829. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.

Great Northern Railway Historical Society Blueprint Collection JSBP2826, Interbay, Washington, 1949. Great Northern Blueprint Number 295-58-4-3, Bridge #3.3 over Great Northern. Bridge Section Views and Part Details. Authorization for Expenditure 78829. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.

Great Northern Railway Historical Society Blueprint Collection JSBP2827, Interbay, Washington, 1949. Great Northern Blueprint Number 271-4895, Bridge # 3.0 and 3.1 over Great Northern Interbay Tracks. Proposed Plan "C" Elevation Plan and Section Views. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.

Great Northern Railway Historical Society Blueprint Collection JSBP4341, Seattle, Washington, 1907. Proposed Adjustable Slip for Elevator Dock - Smith Cove. Elevations. Authorization for Expenditure 13373. Interstate Commerce Commission Account Number 24, Coal and Ore Wharves. Other ICC account descriptions: ICC Account Number 24, Dock.

Great Northern Railway Historical Society Blueprint Collection JSBP4343, Seattle, Washington, 1908. Proposed 10' X 11' Office for Custom Officials at Great Northern Dock. Floor Plan and Section. Interstate Commerce Commission Account Number 23, Wharves and docks. Other ICC account descriptions: ICC Account Number 21, Dock and Warehouse.

Great Northern Railway Historical Society Blueprint Collection JSBP4345, Seattle, Washington, 1909. Great Northern Blueprint Number 380.B.02, Plan of Proposed Crossing. Crossing Frog of Great Northern and Northern Pacific at Spokane Avenue. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Other ICC account descriptions: ICC Account Number 12, Rail Line.

Great Northern Railway Historical Society Blueprint Collection JSBP4347, Seattle, Washington, 1912. Great Northern Blueprint Number 198.2449.126, Bridge # 4. Strauss Strunnion Bascule Bridge. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.

Great Northern Railway Historical Society Blueprint Collection JSBP4348, Seattle, Washington, 1912. Great Northern Blueprint Number 198.2449.110, Bridge # 4. Strauss Trunnion Bascule Bridge. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.