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]

Bald Mountain Recreational Facility, Pontiac, Michigan, 1964-1969

[Early Conceptual Sketches], untitled. Ink sketches on two sides of shirt cardboard, 8x12 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]

State of Wisconsin Office Building, Green Bay, Wisconsin, 1981-1983

[Conceptual Sketches], untitled. Blue ink sketches on two pages of letter from William Schuman, Chairman, The MacDowell Colony, including Gunnar Birkerts' notation, "Dinner Tom Bu" [Buechner, Director of Corning Museum of Glass], 8 1/2 x 11 inches [from photographic copy by Lance Burgharrdt]

State of Wisconsin Office Building, Green Bay, Wisconsin, 1981-1983

[Conceptual Sketch], untitled. Blue ink sketch on shirt cardboard, 8x14 inches [from photographic copy by Lance Burgharrdt]

State of Wisconsin Office Building, Green Bay, Wisconsin, 1981-1983

[Conceptual Sketches], untitled. Blue ink sketches on tracing paper, 21 x 24 1/2 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]

Grasis Residence, Vail, Colorado, 1990-1994

[Conceptual Sketch], untitled. Ink sketch on tracing paper with blue, purple and yellow marker coloring, 18 x 20 1/2 inches [from photographic copy by Lance Burgharrdt]

University of Utah J. Willard Marriott Library Addition, Salt Lake City, 1992-1996

[Conceptual Sketch], untitled. Ink and colored marker sketch on tracing paper, 12 x 24 1/4 inches [from photographic copy by Lance Burgharrdt]

University of Utah J. Willard Marriott Library Addition, Salt Lake City, 1992-1996

[Conceptual Sketch of Site Plan], untitled. Ink sketch with marker coloring on tracing paper, 12 x 25 1/2 inches [from photographic copy by Lance Burgharrdt]