Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Window hardware details (full size)

Black ink on tan wove paper

Black chalk and charcoal on off-white laid paper

Black ink, watercolor, and charcoal on cream wove paper

Graphite and charcoal on off-white wove paper

Black crayon on paper

Graphite on paper

Graphite on gesso prepared off-white wove paper

Graphite on cream wove paper

Watercolor and graphite on white wove paper

Graphite on off-white wove paper

Graphite and colored pencil on artist's vellum (tracing paper)

Graphite on paper