Plant Study: Sweet Lemon; Grapefruit; Pipona

Gray wash and black ink, over graphite on cream wove paper

Brown and blue wash

Transparent and opaque watercolor with black ink, gum additions and traces of graphite on off-white modern laid paper

Watercolor over graphite on cream antique laid paper

Watercolor over graphite on cream antique laid paper

Black ink, gray wash, and white gouache on blue-green antique laid paper

Brown ink and brown wash on cream paper

Wash on paper

Gray wash and brown ink on off-white antique laid paper, framing lines in brown ink; verso: brown ink

Gray wash and black ink over graphite on cream wove paper

Red ink and red wash

Watercolor over graphite on cream antique laid paper