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

Watercolor, white gouache and chalk over graphite on off-white wove paper

Ink, wash, and graphite on paper

Graphite on graph paper

Ink on paper

Graphite and red crayon on cream paper

Brown ink, brown wash, and red chalk on cream antique laid paper; verso: red chalk

Watercolor, white gouache and black ink on off-white wove card

Graphite on thin off-white tracing paper

Black ink and gray wash on tan wove paper

Black and colored crayons on paper

Black ink on tan wove paper (recto and verso)

Graphite on paper