IBM Corporate Computer Center, Sterling Forest, New York, 1970-1972

[Conceptual Sketches], untitled. Brown ink sketches on tracing paper, initialed, 12x26 inches [from photographic copy by Lance Burgharrdt]

Glen Oaks Community College, Centreville, Michigan, 1966-1971

[Conceptual Sketches], untitled. Brown ink sketches on two sides of shirt cardboard, with notation, "see also other side," 6x8 inches [from photographic copy by Lance Burgharrdt]

Glen Oaks Community College, Centreville, Michigan, 1966-1971

GB Sketch #26 [of Site Plan]. Black ink and colored pencil sketch on tracing paper, 12 x 24 1/2 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]

Riga Cathedral Exhibition of "The Architecture of Gunnar Birkerts," Riga, Latvia, 1989

[Conceptual Sketch of Floor Plan], untitled. Electrostatic print of sketch with original ink notations and signature, 11x17 inches [from photographic copy by Lance Burgharrdt]

Riga Cathedral Exhibition of "The Architecture of Gunnar Birkerts," Riga, Latvia, 1989

[Conceptual Sketch of Floor Plan], untitled. Blue ink sketch on tracing paper, 12 x 20 3/4 inches [from photographic copy by Lance Burgharrdt]

Kemper Museum of Contemporary Art & Design, Kansas City Art Institute, Kansas City, Missouri, 1991-1994

[Early Conceptual Sketches], untitled. Ink sketches on reverse of "La Valencia Hotel" memo pad paper, 3 1/2 x 6 1/2 inches [from photographic copy by Lance Burgharrdt]

Kemper Museum of Contemporary Art & Design, Kansas City Art Institute, Kansas City, Missouri, 1991-1994

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

Kemper Museum of Contemporary Art & Design, Kansas City Art Institute, Kansas City, Missouri, 1991-1994

[Conceptual Sketch], untitled. Blue ink sketch on tracing paper, initialed, 12x24 inches [from photographic copy by Lance Burgharrdt]

Kemper Museum of Contemporary Art & Design, Kansas City Art Institute, Kansas City, Missouri, 1991-1994

[Conceptual Sketch of Fountain], untitled. Ink sketch on tracing paper with blue marker coloring, 7 1/2 x 12 inches [from photographic copy by Lance Burgharrdt]

Kemper Museum of Contemporary Art & Design, Kansas City Art Institute, Kansas City, Missouri, 1991-1994

[Conceptual Sketch of Fountain], untitled. Ink sketch on tracing paper with blue marker coloring, 10x12 inches [from photographic copy by Lance Burgharrdt]

Kemper Museum of Contemporary Art & Design, Kansas City Art Institute, Kansas City, Missouri, 1991-1994

Competition Drawing of Design Concept. Ink drawing on tracing paper, initialed, 11x17 inches [from photographic copy by Lance Burgharrdt]