Study of a Horse for "Apollo in His Chariot with the Hours," Museum of Fine Arts, Boston

Watercolor and black ink over traces of graphite on off-white antique laid paper, adhered to cream antique laid paper

Brown ink over traces of black chalk on off-white antique laid paper

Graphite on paper

Watercolor

Graphite and colored pencils on paper

Black ink on cream wove paper

Graphite on pale blue-gray antique laid paper

Watercolor on heavy off-white wove paper

Colored marker on paper

Watercolor and graphite on off-white wove paper

Graphite on cream modern laid paper

Collage of gouache and black ink on paper