Sketch of the Profile of a Woman; Mathematical Calculations

Graphite on paper

Black ink and charcoal on cream laid paper

Graphite and marker on graph paper

Black ink on off-white wove paper

Pastel on paper

Graphite on paper

Graphite and gesso on paper

Graphite on brown wove paper

Oil on paper

Brown ink, gray wash, and colored chalk over graphite on off-white cardboard

Black ink on off-white wove paper

Black chalk over brown chalk on darkened off-white wove paper