Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Interior elevations (1/4" = 1'-0")

Black ink on white illustration board

Gray wash on off-white wove paper

Spiral bound sketchbook

Watercolor and graphite on white wove paper

Watercolor and graphite on off-white wove paper

Watercolor and white gouache on off-white laid paper

Graphite on off-white wove paper

Graphite on off-white wove paper

Watercolor and white gouache on off-white wove paper

Black ink and gray wash on buff wove paper

Ink on paper

Colored crayons on paper and mounted