Mercury and Argus

Brown ink, brown and gray wash, green transparent watercolor, and touches of white chalk on the sheet of an account book, framing line in black ink and partial framing line in brown ink at bottom

Black and white chalk on blue paper, faded to gray-beige, partial framing line in black ink

Black chalk on faded blue (?) paper

Black chalk, black ink, gray and brown wash on oatmeal antique laid paper, framing lines in brown ink

Black chalk and gray ink, partially incised, on of-white antique laid paper, partial framing line in black ink; verso: red chalk, rubbed

Brown ink, brown wash, touches of black chalk, and [later?] blue-gray wash on cream antique laid paper

Black chalk on cream antique laid paper, double framing line at bottom in black chalk

Brown ink on cream antique laid paper

Black chalk and black chalk steeped in oil on off-white antique laid paper; some incised lines at lower left

Brown ink, brown wash and later [?] gray-blue wash over touches of graphite on cream antique laid paper, framing line in brown ink

Black chalk on cream antique laid paper

Brown ink and brown wash on cream antique laid paper