View of the Arch of Constantine, seen from the Colosseum

Black and white chalk and white opaque watercolor on blue paper, faded to light brown

Transparent and opaque watercolor over graphite on off-white antique laid paper

Transparent and opaque watercolor and brown ink over graphite, some glazing in green areas, on cream antique laid paper

Transparent and opaque watercolor and black chalk on cream antique laid paper

Black and white chalk on blue antique laid paper

Brown wash, brown ink, and graphite on cream antique laid paper, framing line in brown ink, mounted on antique laid paper

Brown ink, brown wash and white opaque watercolor with scratchwork on cream antique laid paper, framing line in brown ink

Black chalk and gray wash on cream antique laid paper, framing lines in black chalk

Black chalk, gray wash, and later brown wash, incised on cream antique laid paper, with a framing line in brown ink

Black and white chalk and white opaque watercolor on gray-blue paper, framing line in black chalk at upper edge; verso: trial strokes in colored pastel

Black chalk, with framing lines in black chalk, on cream antique laid paper

Gray and brown wash on parchment