Architectural plan drawing (pencil on paper) showing changes in N.P. occupancy due to alterations of offices on the second floor and main floor of the Union Depot, Duluth, Minnesota built in 1892. Also known as the St. Louis County Heritage and Arts Center, home of the Lake Superior Railroad Museum. Revisions 1948 and 1949 Scale: 1/8″” = 1′.
~ Photo Credit: Lake Superior Railroad Museum