View of the Tiber Valley with the Ponte Molle (after Ricci)

Black ink, gray wash on off-white antique laid paper

Brown ink and brown wash on off-white antique laid paper, laid down

Red chalk applied wet on off-white antique laid paper

Brown ink, brown wash, and black chalk on dark cream antique laid paper; verso: brown wash and black chalk

Graphite and brown ink on white antique laid paper

Graphite, heightened with white chalk, on green prepared paper

Black chalk and brown wash on cream antique laid paper

Black ink with gray wash on cream antique laid paper

Black and white chalk on green prepared paper

Brown ink and gray wash on gray-blue antique laid paper

Brown ink and black wash, over black chalk, on off-white antique laid paper