Untitled (bleed-through of previous page, left page); Untitled (measurements for "water cube," right page)

Graphite on off-white wove paper; verso: charcoal

Black crayon on paper

Graphite and ink on paper

Watercolor on ruled off-white wove paper

Black ink and graphite on heavy off-white wove paper

Orange marker on paper

Black ink on off-white antique laid paper

Black ink and graphite on tracing paper, darkened and mounted to laid paper

Graphite on off-white wove paper

Colored marker and black pen on paper

Graphite on off-white wove paper