Untitled (bleed-through of previous page and color transfer, left page); Untitled (pavillion design for Bonn competition and color transfer, right page)

Graphite and blue chalk on paper

Brown ink, brown wash, white gouache on cream antique laid paper

Graphite on paper

Watercolor and white gouache over graphite on cream card

Graphite on paper

Black ink on white wove paper

Black ink and graphite traces on off-white wove paper

Black ink and white gouache over graphite on cream wove paper

Black ink on off-white wove paper, mounted to off-white card

Black fiber-tip ink on off-white wove paper

Graphite on paper

Colored marker on paper