Heron and Four Perched Birds; verso: blank

Black chalk on cream antique laid paper; verso: gray wash

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

Black chalk on off-white antique laid paper, adhered to gray antique laid paper

Watercolor over graphite on cream wove paper, framing line in graphite

Black crayon and gray wash on cream antique laid paper, mounted on pale green laid paper

Black and white chalk on lightly faded blue antique laid paper

Black chalk with touches of white chalk on blue antique laid paper

Pastel

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

Black and red chalk with touches of black-ink wash on cream antique laid paper, framing lines in brown ink and red chalk, laid down on cream antique laid paper

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

Black chalk on off-white antique laid paper