Branch and Mathematical Notations; verso: Branch and Pentagon

Brown ink, transparent watercolor, and white opaque watercolor on off-white antique laid paper, mounted; verso of drawing: star and flourishes in brown ink?

Brown ink, gray wash, and green watercolor over graphite on cream antique laid paper, triple framing line in graphite

Red, black, white and yellow chalk, with the red chalk moistened with water or oil, white and red opaque watercolor on oatmeal paper, framing line in black ink, laid down

Black and brown ink, brown wash, and black chalk on cream antique laid paper, partial framing line in graphite

Brown ink and brown and gray wash over black chalk on cream antique laid paper, framing lines in black ink over black chalk

Transparent watercolor and touches of gold on antique laid paper

Charcoal and touches of white chalk on off-white antique laid paper, mounted down

Brown ink, brown wash, and white and gray opaque watercolor over black chalk on off-white antique laid paper, partial framing line in graphite and mounted overall to wove paper

Brown ink and gray wash and incidental white opaque watercolor on off-white antique laid paper, inlaid on a mount

Brown ink, brown wash, and black chalk on off-white antique laid paper

Brown ink on off-white antique laid paper; verso: graphite

Oil on light tan antique laid paper