Study of Trees, after Alexandre Calame

Charcoal and colored chalk on brown paper

Watercolor and graphite, squared in graphite, on cream wove paper

Black ink and gray wash on off-white paper

Black chalk on blue wove paper, incised; verso: black and white chalk, squared

Black ink and gray wash

Graphite on off-white laid paper

Black ink, watercolor, and gouache on cream paper

Brown ink, transparent and opaque watercolor, and black, white and red chalks on brown paper

Black ink and gray wash

Black and white chalk, squared, on blue wove paper

Charcoal and white chalk, squared, on blue paper