Minnesota Judicial Building Competition, St. Paul, Minnesota, 1984-1985 (unbuilt project)

[Conceptual Sketch], untitled. Blue ink and red pencil sketch on tracing paper, 12x26 inches [from photographic copy by Lance Burgharrdt]

Minnesota Judicial Building Competition, St. Paul, Minnesota, 1984-1985 (unbuilt project)

[Conceptual Sketch of Elevation], untitled. Ink sketch on tracing paper, 12 x 13 1/2 inches [from photographic copy by Lance Burgharrdt]

Minnesota Judicial Building Competition, St. Paul, Minnesota, 1984-1985 (unbuilt project)

[Conceptual Sketches of Elevation], untitled. Ink sketches on tracing paper, 12x20 inches [from photographic copy by Lance Burgharrdt]

U. S. Embassy Office Building, Helsinki, Finland, 1975 (unbuilt project)

[Conceptual Sketch of Site Plan], untitled. Green and black ink sketch on tracing paper, 18x27 inches [from photographic copy by Lance Burgharrdt]

U. S. Embassy Office Building, Helsinki, Finland, 1975 (unbuilt project)

[Roof Study], untitled. Ink and blue pencil sketches on tracing paper, 15 1/2 x 18 inches [from photographic copy by Lance Burgharrdt]

U. S. Embassy Office Building, Helsinki, Finland, 1975 (unbuilt project)

[Roof Study], untitled. Ink sketches on tracing paper, 17x18 inches [from photographic copy by Lance Burgharrdt]

U. S. Embassy Office Building, Helsinki, Finland, 1975 (unbuilt project)

Embassy Window [Studies] (#49). Blue ink sketches on notebook paper, 8 1/2 x 11 inches [from photographic copy by Lance Burgharrdt]

U. S. Embassy Office Building, Helsinki, Finland, 1975 (unbuilt project)

Embassy Window Studies. Blue ink sketches on notebook paper, 8 1/2 x 11 inches [from photographic copy by Lance Burgharrdt]

Corning Public Library (first proposal), Corning, New York, 1969 (unbuilt project)

[Conceptual Sketch of Building as a Bridge], untitled. Ink sketch on tracing paper, representing the beginning of polygonal thought in Gunnar Birkerts' work, 12 x 19 3/4 inches [from photographic copy by Lance Burgharrdt]

Corning Public Library (first proposal), Corning, New York, 1969 (unbuilt project)

[Conceptual Sketch of Building as a Bridge], untitled. Ink sketch on tracing paper, 11 1/2 x 12 inches [from photographic copy by Lance Burgharrdt]

Corning Public Library (first proposal), Corning, New York, 1969 (unbuilt project)

[Conceptual Sketch of Building as a Bridge], untitled. Ink sketch on tracing paper, 12 x 12 1/4 inches [from photographic copy by Lance Burgharrdt]

Corning Public Library (first proposal), Corning, New York, 1969 (unbuilt project)

[Conceptual Sketches of Building as a Bridge], untitled. Ink sketches on two sheets of tracing paper, 12 x 27 1/2 & 12 x 33 inches [from photographic copy by Lance Burgharrdt]

Sports and Civic Stadium, Venice, Italy 1989-1992 (unbuilt project)

[Site Plan Study], untitled. Ink sketch on electrostatic print with green, gray and blue marker coloring, 24x36 inches [from photographic copy by Lance Burgharrdt]

Sports and Civic Stadium, Venice, Italy 1989-1992 (unbuilt project)

[Site Plan Study], untitled. Ink sketch on graph paper, 8 1/2 x 11 inches [from photographic copy by Lance Burgharrdt]

Sports and Civic Stadium, Venice, Italy 1989-1992 (unbuilt project)

[Site Plan Study], untitled. Ink sketch on tracing paper with blue and gray marker coloring, initialed, 14 3/4 x 18 inches [from photographic copy by Lance Burgharrdt]