Areas 'A' and 'B' floor plans and plumbing plan
March 29, 1958

Attic piping and heating plan for Ward Building
July 1927

B.N. Duke Library Building, Classroom Addition and Alterations -- Plumbing Floor Plans and Riser Diagrams
June 8, 1967

B.N. Duke Library Building, Classroom Addition and Alterations -- Plumbing Plot Plan and Details
June 8, 1967

Basement Electric, Plumbing, and Heating
January 27, 1946

Basement electrical and plumbing plan
September 30, 1929 to January 27, 1930

Basement floor electrical and plumbing plan, first floor electrical and plumbing plan
December 18, 1929

Basement floor plan
April 28, 1938

Basement heating and plumbing plan
October 1, 1934

Basement heating and plumbing plan
November 6, 1926

Basement heating, plumbing, and wiring plan
August 15, 1936

Basement Piping Layout
January 27, 1949

Basement piping pan and pipe section
July 20, 1950

Basement Plumbing
January 12, 1954

Basement plumbing and heating plan
March 17, 1941

Basement plumbing and wiring plan, attic plumbing and wiring plan
July 8, 1933

Basement Plumbing Plan
November 1, 1950

Basement plumbing plan
May 26, 1930

Basement plumbing plan
May 16, 1927

Basement plumbing plans
July 20, 1950