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

Oil, with pricked outlines, on cream antique laid paper

Black chalk on parchment, autograph framing line in black chalk

Transparent watercolor over graphite on antique laid paper

Brown ink and gray wash over black chalk, with later additions of dark gray wash and white and yellow opaque watercolor, on off-white antique laid paper; verso: brown ink and gray wash over black chalk

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

Brown and gray wash, graphite and white opaque watercolor on off-white antique laid paper, framing line in black ink, incised; verso: gray wash and trial strokes in black ink

Black chalk on parchment

Black chalk and gray wash on antique laid paper

Black chalk, graphite, and brown and gray wash on off-white antique laid paper, framing line in ink or black chalk

Transparent watercolor, black chalk, gray wash, and brown ink over black chalk on cream antique laid paper, with a framing line in brown ink

Black chalk and brown ink on cream antique laid paper

Black and white chalk on gray prepared paper; verso: black chalk