Portrait of Charles-Marie de la Condamine (1701-1774)

Red chalk on tracing paper, darkened, laid down

Black chalk, brown ink, brown and blue washes and white gouache on cream wove paper

Watercolor, gouache, and graphite on cream wove paper

Graphite on white antique laid paper

Black crayon, gray wash, watercolor, and opaque white watercolor on off-white laid paper, mounted to board

Brown ink, brown wash, on discolored blue paper

Brown ink on tracing paper

Watercolor, brush and brown ink, and gouache over graphite on blue-gray modern laid paper

Watercolor and graphite on paper

Graphite on cream modern laid paper

Watercolor on white antique laid paper