Great Northern Blueprint Number 9398-M1, Great Northern Westminster Street Interlocking Tower, New Hot Water Heating System, 1967. Other subject categories: Drawing

Great Northern Blueprint Number 9398-2, Great Northern Westminster Street Interlocking Tower, Cross Section and Plans, 1958. Other subject categories: Drawing

Great Northern Blueprint Number 9398-4, Great Northern Westminster Street Interlocking Tower, Battery Shelves, 1958. Other subject categories: Drawing

Great Northern Blueprint Number 1396-7-5, Great Northern Drake's Rearrangement for Office, 1914. Other subject categories: Drawing

Great Northern Blueprint Number 1396-7-4, Great Northern Auditors Subdivision Number 32, Great Northern Office, 1914. Other subject categories: Drawing

Great Northern Blueprint Number 1396-7-10, Great Northern Excavating for Great Northern Office, 1914. Other subject categories: Drawing

Great Northern Blueprint Number 1396-7-12 , Great Northern Plat of Building Site of Great Northern Office, 1914. Other subject categories: Drawing

Great Northern Blueprint Number 1396-7-7, Great Northern Profile of Driveway Great Northern Office, 1914. Other subject categories: Drawing

Great Northern Blueprint Number 1396-7-6, Great Northern Sidewalk Drawing for Office, 1914. Other subject categories: Drawing

Great Northern Blueprint Number 1396-7-14 , Great Northern Great Northern Office 12th Floor, 1914. Other subject categories: Drawing