Mountains, Promontogno, Switzerland

Colored marker on paper

Watercolor on cream wove paper

Pastel on paper

Black and red marker on paper

Brown ink and red chalk on cream antique laid paper; verso: brown ink

Black crayon on paper

Graphite on cream wove paper

Graphite on paper

Black chalk with white highlights on brown modern laid paper

Graphite, black crayon, and white chalk on blue-gray laid paper

Graphite on paper

Graphite on off-white modern laid paper