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

Black crayon and graphite on off-white wove paper

Black ink on illustration board

Ink and brown pencil on white wove paper

Watercolor

Black ink on off-white wove paper

Graphite on paper

Ink on paper

Watercolor & white gouache over graphite on white wove ppr. mounted to cardboard

Graphite on paper

Black ink on ivory laid paper

Graphite on off-white wove paper

Black ink & gray wash over graphite on heavy off-white wove ppr; verso: graphite