Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Suggested design - radio unit: elevations

Watercolor over graphite on gray-brown wove paper

Black ink on white wove paper

Graphite on buff wove paper

Watercolor and graphite on white wove paper

Watercolor on cream wove paper

Charcoal on off-white laid paper

Black conté crayon on ivory tracing paper

Graphite on heavy weight, white card stock (Strathmore Bristol board)

Graphite on paper

Graphite on off-white wove paper

Graphite on paper

Watercolor and graphite on cream wove paper; verso: black ink and graphite