Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Scale indication for Chatillon Scale (full size)

Watercolor over graphite on off-white wove paper

Black ink, graphite, and yellow chalk on off-white wove paper; verso: black ink

Watercolor, white gouache and graphite on off-white cardboard

Black ink with corrections in white on off-white illustration board

Graphite on paper

Watercolor and graphite on off-white wove paper

Black crayon and ink on paper

ink on white wove paper

Sketchbook with beige cloth-covered cardboard covers

Watercolor and graphite on white wove paper

Ink on cardboard

Black ink on off-white wove paper