Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Railing connections to building (full size)

Watercolor and graphite on heavy off-white wove paper

Watercolor, white gouache and black ink on off-white wove paper

Charcoal on off-white laid paper

Graphite on paper

Oil on off-white wove paper

Graphite on paper

Black ink with white gouache on gray wove paper

Blue, yellow, and white colored pencil on tracing paper

Watercolor and graphite on cream wove paper

Graphite on off-white wove paper

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