Aquatic Animals, after Fresco at Chichen Itza, Mexico

Graphite on off-white wove paper

Charcoal, white pencil, white chalk, black ink, red watercolor (or ink) on off-white wove paper

Graphite on paper

Graphite, gouache, crayon, and silver and black ink on white wove paper

Black ink on tan wove paper

Charcoal on blue laid paper

Colored pencil on buff wove paper

Graphite on paper

Graphite on off-white wove paper

Blue, purple and brown crayon on paper

Gouache over graphite on paper