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

Colored chalk on cream modern laid paper

Graphite on cream modern laid paper

Brown wash and graphite on greenish antique laid paper

Black crayon over graphite, squared in graphite, on off-white antique laid paper; verso: black crayon

Red chalk on cream paper

Brown ink with brown and gray wash on off-white wove paper

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

Watercolor and graphite on off-white wove paper

Chalk on paper