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]

Church of the Servant, Kentwood, Michigan, 1988-1994

[Conceptual Sketch of Elevation], untitled. Ink sketch on tracing paper with marker coloring, 12 x 29 1/2 inches [from photographic copy by Lance Burgharrdt]

Church of the Servant, Kentwood, Michigan, 1988-1994

[Conceptual Sketches of Elevations], untitled. Ink sketches on two sheets of tracing paper with marker coloring, one initialed, 12x41 & 12x42 inches [from photographic copy by Lance Burgharrdt]

Church of the Servant, Kentwood, Michigan, 1988-1994

[Conceptual Sketch of Elevation], untitled. Ink sketch on tracing paper with marker coloring, 12x32 inches [from photographic copy by Lance Burgharrdt]

Church of the Servant, Kentwood, Michigan, 1988-1994

[Conceptual Representation of Tree of Life Motif on Door], untitled. Cut-out cardboard pieces on mat board, initialed, 18x23 inches [from photographic copy by Lance Burgharrdt]

Corning Museum of Glass, Corning, New York, 1976-1980

[Conceptual Sketch of of Museum of Glass I Site Plan], untitled. Ink sketch on blue-line print, 9 1/2 x 18 1/4 inches [from photographic copy by Lance Burgharrdt]

Corning Museum of Glass, Corning, New York, 1976-1980

[Conceptual Sketch of Museum of Glass I], untitled. Ink sketch on graph paper, 8 1/2 x 11 inches [from photographic copy by Lance Burgharrdt]

University of Michigan Law Library Rare Book Room, Ann Arbor, Michigan, 1982

[Schematic Design Drawing of] Level 1 Floor Plan. Blue ink and colored pencil drawing on electrostatic print, 17 3/4 x 24 3/4 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]