Ancient Aqueduct at the Porta Pio, Rome

Chalk on paper

Watercolor and black ink over traces of graphite on off-white antique laid paper, adhered to cream antique laid paper

Black chalk on off-white antique laid paper, framing lines in brown ink, laid down on cream card

Black ink and gray-brown wash over black chalk on cream antique laid paper, framing lines in brown and black ink and black chalk, blue paper borders adhered to face, laid down on a decorated mount with remnant of a ledger from 1713 on the verso

Graphite and red chalk on off-white antique laid paper; verso: brownish red chalk, red chalk wash, brown wash and graphite

Black and red chalk on cream antique laid paper, laid down on cream antique laid paper

Red chalk on oiled antique laid paper

Red chalk counterproof heightened with white chalk on toned tan antique laid paper

Black and white chalk on blue antique laid paper, adhered to tan antique laid paper, framing lines in black ink

Verso: watercolor and black ink over traces of graphite on cream antique laid paper

Black chalk on cream paper, laid down