Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Second floor plan

Charcoal on blue-flecked beige laid paper

Oil on tracing paper

Black ink and touches of graphite on white wove paper, mounted to cardboard

Ink

Ink on paper

Off-white card

Transparent and opaque watercolor and graphite on white wove paper

Black ink on tan wove paper

Black crayon on thin buff wove paper

Black ink and charcoal on cream laid paper

Graphite on paper

Black ink over graphite on off-white wove paper