Studies for the Hours, "Apollo in His Chariot with the Hours," Museum of Fine Arts, Boston

Brown crayon on paper

Graphite on paper

Colored marker on paper

Ink on paper

Watercolor and graphite on buff laid paper

Watercolor, black ink, graphite, and black chalk on off-white antique laid paper

Graphite on cream wove paper

Black and red crayon ; black crayon on paper

Dark gray wash on buff wove paper

Colored marker on paper

Graphite on paper

Watercolor on cardboard