A Serpentine Plant (Ophioxylum Serpentinum)

Black and touches of white chalk on blue-gray antique laid paper, framing line in graphite, inlaid

Transparent watercolor on cream antique laid paper, with a framing line in brown ink

Brown ink, gray wash, and touches of black chalk on cream antique laid paper, framing line in brown ink and black chalk

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

Black chalk and gray wash on white antique laid paper with a framing line in brown ink; verso: graphite, black chalk and gray wash

Brown ink, gray wash, and black chalk on cream antique laid paper; framing line in brown ink

Gray wash over graphite on cream antique laid paper

Transparent watercolor and graphite on cream antique laid paper, framing line in black ink, mounted to cream antique laid paper

Gouache and watercolor

Gray wash over black chalk on off-white antique laid paper

Brown wash on antique laid paper

Brown ink and gray wash over graphite on off-white antique laid paper, remounted