Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Design for sandblasting glazed partition, first floor: elevations (1/2" = 1'-0" and full size)

Charcoal, oil stick, acrylic, and Liquid Paper on white wove paper

Watercolor over graphite on off-white wove paper

Graphite on off-white wove paper

Watercolor on off-white wove paper

Black ink and gray wash on tan wove paper

Black ink on two joined sheets of green prepared paper

Graphite on heavy off-white wove paper

Graphite and Prismacolor on paper

Charcoal and graphite (fixed) on off-white wove paper

Gouache and blue ballpoint on off-white wove paper

Sketchbook with cream paper-covered cardboard covers

Charcoal on off-white laid paper