Kaufman Residence, Muskegon, Michigan, 1962 (unbuilt project)

[Early Conceptual Sketch], untitled. Blue ink sketch on yellow loose-leaf paper, 8 1/2 x 11 inches [from photographic copy by Lance Burgharrdt]

Embassy Prototype for Foreign Buildings Office, Washington, D.C., 1975 (unbuilt project)

[Conceptual Sketch of Ideal Embassy], untitled. Black and orange ink sketch on graph paper, 8 1/2 x 11 inches [from photographic copy by Lance Burgharrdt]

University of Nebraska, Wick Alumni Center Competition, Lincoln, Nebraska, 1981 (unbuilt project)

[Conceptual Sketch], untitled. Ink sketch on two sides of shirt cardboard, 8x14 inches [from photographic copy by Lance Burgharrdt]

Ford Motor Company Visitor Reception Center, Dearborn, Michigan, 1971 (unbuilt project)

[Conceptual Sketch of Scheme 1], untitled. Ink sketch on white paper, 8 1/2 x 11 inches [from photographic copy by Lance Burgharrdt]

Washington Monument Visitor Center Competition, Washington, DC, 1972 (unbuilt project)

G.B. Worksheet, #43. Ink drawing on reverse of blue-line print, 14 1/4 x 18 3/4 inches [from photographic copy by Lance Burgharrdt]

Tougaloo College Master Plan, Tougaloo, Mississippi, 1965-1971 (unbuilt project)

[Study Sketch], untitled. Brown ink drawing on tracing paper, 18 x 17 1/2 inches [from photographic copy by Lance Burgharrdt]

Tougaloo College Master Plan, Tougaloo, Mississippi, 1965-1971 (unbuilt project)

[Conceptual Sketch], untitled. Ink and purple crayon sketch on tracing paper, 17 3/4 x 21 inches [from photographic copy by Lance Burgharrdt]

Tougaloo College Master Plan, Tougaloo, Mississippi, 1965-1971 (unbuilt project)

[Conceptual Sketch], untitled. Ink sketch on yellow paper, 8 1/2 x 11 inches [from photographic copy by Lance Burgharrdt]

Tougaloo College Master Plan, Tougaloo, Mississippi, 1965-1971 (unbuilt project)

[Conceptual Sketch], untitled. Ink sketch on shirt cardboard, 7 3/4 x 9 3/4 inches [from photographic copy by Lance Burgharrdt]

Tougaloo College Master Plan, Tougaloo, Mississippi, 1965-1971 (unbuilt project)

[Early Conceptual Sketches], untitled. Ink sketches on five sheets of tracing paper, 5 1/4 x 6 to 8 1/2 x 9 1/2 inches [from photographic copy by Lance Burgharrdt]

Tougaloo College Master Plan, Tougaloo, Mississippi 1965-1971 (unbuilt project)

[Conceptual Sketches], untitled. Digital image only of black ink sketches on vellum and tracing paper

Tougaloo College Master Plan, Tougaloo, Mississippi 1965-1971 (unbuilt project)

[Conceptual Sketches], untitled. Digital image only of black ink sketches on shirt cardboard

Tougaloo College Master Plan, Tougaloo, Mississippi 1965-1971 (unbuilt project)

[Conceptual Sketches], untitled. Digital image only of blue ink sketches on vellum

University of Turin, Humanities Faculties Building, Turin, Italy 1989-1990 (unbuilt project)

[Conceptual Site Plan Sketch], untitled. Black ink sketch on tracing paper with green, brown and purple marker coloring, 18 x 22 3/4 inches

University of Turin, Humanities Faculties Building, Turin, Italy 1989-1990 (unbuilt project)

[Early Site Plan Study], untitled. Green and black ink drawing on tracing paper with colored pencil and marker coloring, initialed, 18 x 33 1/2 inches