Fall of the Tritt in the Mühlethal Valley, Switzerland

Black ink and gray wash

Red chalk on cream paper, framing line in graphite

Watercolor and graphite on off-white laid paper

Black and brown ink on cream wove paper

Black ink and gray wash on off-white paper

Black ink, gray wash, and garphite on off-white paper

Graphite

Brown ink, transparent and opaque watercolor, and black, white and red chalks on brown paper

Brown wash and graphite on cream paper

Brown and black ink, brown wash over black chalk on off-white wove paper, laid down

Black ink and gray wash