Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Revision of wall between pool and recreation room: elevation and plan (cancelled) (1/2" =1"-0" )

Black ink of off-white wove paper

Graphite on cream wove paper

Black crayon on paper

Gold pencil on crumpled black tissue paper

Graphite, black chalk and black ink on off-white wove paper

Black ink, blue-gray watercolor, brown wash, white gouache, collage, graphite, and touches of red chalk on cream wove paper

Black ink on off-white wove paper

Charcoal on gray-blue laid paper

Dark brown ink on white wove paper

Graphite on off-white wove paper

Graphite on off-white wove paper

Sketchbook with black-leather-covered cardboard covers