Bardha Residence , Birmingham, Michigan, 1984-1989

[Conceptual Sketch of Roof], untitled. Ink sketch on tracing paper, 12 x 24 1/2 inches [from photographic copy by Lance Burgharrdt]

Bardha Residence , Birmingham, Michigan, 1984-1989

[Conceptual Sketch of Roof], untitled. Blue ink sketch on tracing paper with purple and green marker coloring, 18x34 inches [from photographic copy by Lance Burgharrdt]

ParkCenter, Houston, Texas, 1983 (unbuilt project)

[Conceptual Sketch], untitled. Ink sketch on tracing paper, 12x23 inches [from photographic copy by Lance Burgharrdt]

Weinstein Residence, San Francisco, California, 1986 (unbuilt project)

[Early Conceptual Sketch], untitled. Blue ink sketch with marker coloring on tracing paper, 12 x 21 1/2 iinches [from photographic copy by Lance Burgharrdt]

Weinstein Residence, San Francisco, California, 1986 (unbuilt project)

[Conceptual Sketch], untitled. Blue ink sketch with yellow marker coloring on tracing paper, 12 x 24 1/2 inches [from photographic copy by Lance Burgharrdt]

Weinstein Residence, San Francisco, California, 1986 (unbuilt project)

[Conceptual Sketch], untitled. Blue ink sketch with blue marker coloring on tracing paper, 12 x 19 1/2 inches [from photographic copy by Lance Burgharrdt]

St. Peter's Lutheran Church, Columbus, Indiana, 1980-1988

[Schematic Design Drawing of Roof and Steeple Section Study], untitled. Black and green ink and red pencil sketch on black-line print, 26 1/2 x 25 inches [from photographic copy by Lance Burgharrdt]

St. Peter's Lutheran Church, Columbus, Indiana, 1980-1988

[Conceptual Sketch of Roof], untitled. Black and blue ink sketch on tracing paper, 24x33 inches [from photographic copy by Lance Burgharrdt]

St. Peter's Lutheran Church, Columbus, Indiana, 1980-1988

[Conceptual Sketch of Roof], untitled. Blue ink sketch on tracing paper, 18 x 31 3/4 inches [from photographic copy by Lance Burgharrdt]

St. Peter's Lutheran Church, Columbus, Indiana, 1980-1988

[Conceptual Sketch], untitled. Green ink sketch on tracing paper, 12x19 inches [from photographic copy by Lance Burgharrdt]

St. Peter's Lutheran Church, Columbus, Indiana, 1980-1988

[Conceptual Sketches], untitled. Blue ink sketches on tracing paper, 18x17 inches [from photographic copy by Lance Burgharrdt]

St. Peter's Lutheran Church, Columbus, Indiana, 1980-1988

[Schematic Design Drawing of Steeple Section], untitled. Green marker coloring on black-line print, 8 1/2 x 11 inches [from photographic copy by Lance Burgharrdt]

St. Peter's Lutheran Church, Columbus, Indiana, 1980-1988

[Conceptual Sketches of Roof], untitled. Ink sketches on tracing paper, initialed, 12 x 21 1/4 inches [from photographic copy by Lance Burgharrdt]

St. Peter's Lutheran Church, Columbus, Indiana, 1980-1988

[Conceptual Sketches of Steeple], untitled. Blue ink sketches with purple marker coloring on tracing paper, 18x27 inches [from photographic copy by Lance Burgharrdt]

St. Peter's Lutheran Church, Columbus, Indiana, 1980-1988

[Early Conceptual Sketch], untitled. Blue ink sketch on steno pad paper, 6x9 inches [from photographic copy by Lance Burgharrdt]