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

Black crayon, squared in black crayon, on off-white antique laid paper

Black chalk with erasure on cream antique laid paper

Graphite and black crayon on off-white antique laid paper; verso: black crayon

Black chalk and graphite on cream modern laid paper

Transparent and opaque watercolor and graphite on gray wove paper with additional gum glazes

Red chalk on dark tan wove paper, discolored

Graphite on cream wove paper

Graphite on white antique laid paper

Watercolor on cream wove paper

Graphite and brown wash on cream wove paper

Black ink on darkened tracing paper, mounted to laid paper

Black and white chalk on gray wove paper