Untitled (adhered note with measurements, left page); Untitled (measurements and calculations, right page)

Graphite on tan wove paper

Charcoal on paper

Black marker on paper

Colored marker on paper

Black crayon, squared in black crayon, on off-white antique laid paper; verso: graphite

Colored crayons on paper

Colored marker on paper

Black crayon on paper

Charcoal, graphite, and colored crayon over gray wash on white wove paper

Colored crayons on paper

Graphite and colored pencil on artist's vellum (tracing paper)

Brown ink on light tan antique laid paper