Lincoln Elementary School, Columbus, Indiana, 1965-1967

[Important Schematic Design Drawing], untitled. Pencil on vellum drawing, 17 1/2 x 28 inches [from photographic copy by Lance Burgharrdt]

Vocational Technical Institute Campus Master Plan, Carbondale, Illinois, 1967 (unbuilt project)

[Conceptual Sketches], untitled. Brown ink sketches on shirt cardboard, 8x12 inches [from photographic copy by Lance Burgharrdt]

Vocational Technical Institute Campus Master Plan, Carbondale, Illinois, 1967 (unbuilt project)

[Conceptual Sketches], untitled. Black and red ink sketches on tracing paper, 12 x 24 1/2 inches [from photographic copy by Lance Burgharrdt]

Vocational Technical Institute Campus Master Plan, Carbondale, Illinois, 1967 (unbuilt project)

[Conceptual Sketches], untitled. Black and red ink sketches on tracing paper, 12x17 inches [from photographic copy by Lance Burgharrdt]

Vocational Technical Institute Campus Master Plan, Carbondale, Illinois, 1967 (unbuilt project)

[Conceptual Sketch], untitled. Brown ink sketch on shirt cardboard, 8 x 8 3/4 inches [from photographic copy by Lance Burgharrdt]

Federal Reserve Bank of Minneapolis, Minneapolis, Minnesota, 1967-1973

[Conceptual Sketch], untitled. Brown ink sketch with notations on notebook paper, 8 1/2 x 11 inches [from photographic copy by Lance Burgharrdt]

Federal Reserve Bank of Minneapolis, Minneapolis, Minnesota, 1967-1973

[Conceptual Sketch], untitled. Brown ink sketch with numerical calculations on notebook paper, 8 1/2 x 11 inches [from photographic copy by Lance Burgharrdt]

Lewis Residence, Bloomfield Hills, Michigan, 1965-1967

[Conceptual Sketches], untitled. Blue ink sketches on shirt cardboard, 8x12 inches [from photographic copy by Lance Burgharrdt]