Study of a Bird (Mergus albellus, or "smew")

Brown ink and red chalk on cream antique laid paper; verso: brown ink

Watercolor and gouache on dark cream antique laid paper

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

Opaque and transparent watercolor over graphite on parchment, mounted down

Black, red, and white chalk, on light tan antique laid paper, partial framing lines in brown ink and black chalk

Brown ink and black chalk with white opaque watercolor restoration on off-white antique laid paper; verso: brown ink, gray and brown wash, black chalk, and white opaque watercolor

Brown ink

Brown ink on dark cream antique laid paper, mounted down entirely

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

Watercolor over graphite on cream antique laid paper

Watercolor and brown, gray, and black ink on off-white antique laid paper

Brown ink, gray wash on antique laid paper