Partial Study of a Wing; verso: Study of a Wing

Colored marker on paper

Red chalk on cream antique laid paper

Watercolor and charcoal on heavy white wove paper

Watercolor and graphite on cream wove paper

Colored marker on paper

Colored chalk and graphite on brown paper

Colored marker on paper

Iron filings and graphite on cream prepared wove paper

Graphite on paper

Black and white chalk on blue antique laid paper

Graphite and white gouache and black ink on gray paper

Watercolor over graphite on heavy off-white wove paper