Folio recto: Blank; verso: Bird Confronting an Owl before a Cave

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

Red chalk, gray wash, black and brown ink, white gouache and black chalk, on off-white antique laid paper

Black crayon on off-white antique laid paper, mounted on pale green laid paper

Black chalk and black-chalk sauce, heightened with white chalk, on cream wove paper, prepared with blue ground

Black ink, gray wash, and graphite on off-white antique laid paper, framing lines in brown ink

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

Black chalk, heightened with white, on discolored blue antique-laid paper

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

Brown wash and graphite on pale gray modern laid paper

Black chalk, brown ink, and brown wash on cream antique laid paper

Watercolor and black ink over black chalk on cream laid paper, top edge trimmed, laid down on a decorated mount, framing lines in brown ink

Red chalk and traces of graphite on cream antique laid paper, partially incised, laid down on cream antique laid paper