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

Brown ink and brown wash on buff antique laid paper

Black chalk on cream antique laid paper

Brown ink and brown wash with touches of watercolor on cream antique laid paper

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

Brown ink on buff antique laid paper

Graphite on pale blue-gray antique laid paper

Brown ink, gray wash and graphite on cream wove paper

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

Black ink over black chalk on antique laid paper

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

Brown ink on off-white antique laid paper

Graphite and brown ink on white antique laid paper