Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Exterior door to roof terrace #308 and flashing details (3" =1"-0" and full size)

Graphite on paper

Opaque watercolor and black ink on white wove paper

Ink with collage on paper

Watercolor over graphite on off-white wove paper, mounted to off-white card

Gouache, graphite and colored pencil on off-white wove paper

Graphite on coated off-white wove paper

Graphite on paper

Charcoal on cream laid paper

Graphite and black ink on off-white tracing paper

Graphite on off-white wove paper

Turpentine wash with oil on off-white wove rag paper

Watercolor and white gouache on off-white wove paper