Untitled (adhered calculations, left page); Untitled (adhered pages of calculations, right page)

Graphite and colored pencil on paper

Black, red and white chalk on off-white antique laid paper

Graphite on off-white wove paper

Brown ink, with an accidental touch of white gouache, on cream antique laid paper laid down to twentieth-century white wove paper

Black ink and brown wash with black and white chalk on light tan antique laid paper, laid down on off-white antique laid paper and off-white card

Colored marker on paper

Black ink on off-white wove paper

Graphite on cream wove paper

Unmounted drawing: ink on paper

Colored marker on paper

Graphite on tan wove paper

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