Pompeo Leoni Private Residential Project, Milan, Italy, 1992-1994 (unbuilt project)

[Conceptual Sketches of Elevation and Roof Axonometric], untitled. Ink sketches on two facsimile prints, 8 1/2 x 17 1/4 inches [from photographic copy by Lance Burgharrdt]

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

[Site Plan Study], untitled. Blue ink sketch on tracing paper with green, brown and purple marker coloring, 12 x 30 1/2 inches [from photographic copy by Lance Burgharrdt]

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

[Site Plan Study], untitled. Ink sketch on tracing paper with gray and yellow marker coloring, 17 1/2 x 18 inches [from photographic copy by Lance Burgharrdt]

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

[Site Plan Study], untitled. Ink sketch on tracing paper with green marker coloring, initialed, 18x35 inches [from photographic copy by Lance Burgharrdt]

Albion Church (Grace Lutheran Church), Albion, Michigan, 1960 (unbuilt project)

[Schematic Design Drawing of Floor Plan and Elevation], untitled. Pencil and colored pencil drawing on vellum, 24x36 inches [from photographic copy by Lance Burgharrdt]

Woodbranch Energy Plaza, Houston, Texas, 1982 (unbuilt project)

[Early Conceptual Sketches], untitled. Green ink sketches on steno pad paper, 6x9 inches [from photographic copy by Lance Burgharrdt]

Woodbranch Energy Plaza, Houston, Texas, 1982 (unbuilt project)

[Early Conceptual Sketch], untitled. Brown ink sketch on shirt cardboard, 8 x 12 1/2 inches [from photographic copy by Lance Burgharrdt]

Woodbranch Energy Plaza, Houston, Texas, 1982 (unbuilt project)

[Conceptual Sketch], untitled. Black, green and red ink and pencil sketch on black-line print of site plan, 20 3/4 x 31 3/4 inches [from photographic copy by Lance Burgharrdt]

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]