The Mongoose and the Crocodile, for "The Merry Mongoose," by Helen Hay

Sketchbook with black paper-covered cardboard covers and leather spine

Watercolor on heavy off-white wove paper, with scratchwork

Brown ink over graphite on cream card

Transparent and opaque watercolor on buff wove paper

Brown ink on ivory laid paper

Black ink and gray wash over graphite on off-white wove paper

Graphite on off-white wove paper

Oil on card prepared with white tempera

Charcoal on blue laid paper

Red crayon on glossy yellowed tracing paper

Watercolor and white gouache over graphite on heavy off-white wove paper

Graphite and brown wash on off-white wove paper