Untitled (bleed-through of previous page, left page); Untitled (design for Cologne project, right page)

Graphite on paper

Ink on vellum

Graphite on paper

Graphite on paper

Black and metallic marker, printed architectural drawing, paper, and adhesive on paper

Black crayon on paper

Graphite on paper

Graphite on envelope

Ink on paper

Graphite and colored crayons ; graphite on paper

Colored crayons on paper

Graphite on paper