Ancient Aqueduct at the Porta Pio, Rome

Black crayon, graphite and white gouache on cream antique laid paper mounted to commercially prepared board

Black chalk on beige laid paper

Black chalk on cream antique laid paper, laid down on off-white wove paper

Black ink and brown wash over traces of black chalk on off-white antique laid paper, partially incised; verso: rubbed with red chalk

Black chalk on off-white antique laid paper

Red and brown chalk on cream antique laid paper, laid down on cream antique laid paper with blue paper adhered to face

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

Red and white chalk on cream antique laid paper laid down on a decorated mount, framing lines in black ink

Red and black chalk on light tan antique laid paper, framing lines in black ink

Red and brown chalk on cream antique laid paper, laid down on cream antique laid paper with blue paper adhered to face