Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Revisions at rear of lot: plan and elevation (1" = 10'-0")

Red and brown chalk on off-white wove paper

Black crayon and ink on paper

Graphite on off-white laid paper

Graphite on cream wove paper mounted to buff wove paper

Graphite on paper

Graphite on paper

Sketchbook with tan paper covers

Graphite on buff wove paper

Unbound sketchbook

Graphite and white pastel on gray-green laid paper

Black ink and white-gray gouache on grayish-white textured wove paper

Black, orange and purple crayon on paper