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

Colored marker on paper

Graphite on paper

Graphite on paper

Brown ink and white gouache on faded blue antique laid paper

Graphite on off-white wove paper

Black ink over graphite on off-white wove paper

Graphite on paper

Black ink on translucent vellum paper

Graphite on paper

Graphite on brown laid paper

Graphite on buff wove paper

Colored marker on paper