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

Watercolor

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

Black and white chalk

Charcoal, black and white chalk, and traces of white opaque watercolor, squared in black chalk, on green-gray wove paper, discolored to tan

Charcoal with smudging, erasing, and scraping on beige wove paper

Graphite on pale gray modern laid paper

Black chalk, partially reworked in graphite, heavily applied, on tan wove paper

Brown ink on white wove paper

Brown wash over graphite on white wove paper

Charcoal and black crayon with stumping, scratchwork and lifting on buff wove paper

Black colored pencil [?] on off-white wove paper

Black chalk on cream paper, laid down