View of the Battlements of Grottaferrata with Mount Cavo in the Background

Brown ink on tan wove paper

Black and white chalk

Black chalk over graphite, squared in graphite, on white wove paper; verso: graphite, squared.

Graphite, colored pencil and black ink on off-white wove paper

Watercolor and graphite on off-white wove paper

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

Black ink, gray wash, and gouache on off-white wove paper, slightly darkened

Black ink on off-white wove paper

Conté crayon on beige modern laid paper

Black ink on tracing paper, darkened and mounted to laid paper

Graphite, touches of red and white chalk, tan antique laid paper, framing lines in brown ink

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