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

Brown ink and brown wash on white antique laid paper

Brown ink, brown, gray and blue-green washes, over graphite, on antique laid pap

Black and white chalk on gray prepared paper

Black chalk on cream antique laid paper

Watercolor, with accents of gouache, over graphite on cream wove paper

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

Red chalk on white antique laid paper

Black and white chalk on blue antique laid paper

Graphite on cream antique laid paper

Black ink and brown wash on tan antique laid paper

Black chalk on cream antique laid paper

Black chalk on cream wove paper