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

Watercolor and graphite on heavy off-white wove paper

Watercolor over graphite on heavy cream wove paper (recto and verso)

Graphite on paper

Black and colored crayon on off-white wove paper

Ink and graphite on paper

Watercolor, black ink, and touches of graphite on off-white wove paper

Black ink on heavy white wove paper

Graphite and white chalk on blue laid paper

Black and white tempera on acetate laid over blue and brown tissue paper

Graphite on off-white wove paper

Charcoal on paper

Graphite on white wove paper