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

Prussian blue (blue-green) ink and blue-green wash on light tan antique laid paper

Watercolor and gouache on off-white wove paper

Graphite and ink ; graphite on paper

Off-white wove paper

Blue crayon on paper

Ink, watercolor, and collage on paper

Graphite on darkened off-white wove paper

Colored marker and opaque watercolor on paper

Graphite on paper

Watercolor

Graphite, ink, and collage elements on paper

Black chalk on cream antique laid paper, incised with a stylus for transfer; verso covered with red chalk