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

Brown ink and brown wash over traces of black chalk on white antique laid paper

Brown ink and gray and brown wash on cream antique laid paper

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

Black ink over graphite on off-white antique laid paper

Brown ink and gray wash, traces of graphite and white gouache, on cream antique laid paper, framing lines in brown ink

Black ink and brown wash on tan antique laid paper

Brown ink, gray wash heightened with white gouache on cream antique laid paper

Black chalk on cream wove paper

Black chalk heightened with white chalk on faded blue antique laid paper

Red chalk on cream antique laid paper, laid down on a decorated mount

Black chalk on cream antique laid paper

Graphite and brown ink on white antique laid paper