Aquatic Animals, after Fresco at Chichen Itza, Mexico

Graphite on paper

Graphite on paper

Black ink on off-white laid paper

Watercolor over graphite on off-white wove paper

Black ink on off-white tracing paper

Black, white and brown chalk on blue paper

Charcoal on off-white wove paper (recto and verso)

Black and white chalk on brown wove paper

Graphite on paper

Charcoal and graphite on white wove notebook paper

Collage on board

Graphite and white chalk on buff wove paper, laid down