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

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

Black and white chalk on gray prepared paper

Black and grey washes and brown ink, white gouache on blue paper; Verso: brown ink

Black ink, gray wash, white gouache, and black chalk on brown antique laid paper

Black ink and gray wash over graphite on cream antique laid paper, framing lines in black ink

Brown ink and brown wash over black chalk on cream antique laid paper

Black chalk on cream antique laid paper

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

Black chalk on cream antique laid paper

Brown ink and brown wash over black chalk on off-white antique laid paper; verso: red chalk

Charcoal on blue antique laid paper

Black and white chalk, stumped, on blue antique laid paper