Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Desk - room #210 and bookcase: plan, sections, and elevations (1 1/2" and 6" = 1'-0")

Graphite, black ink, blue and yellow chalk on off-white wove paper

Watercolor over graphite with scratchwork on off-white wove paper

Graphite on paper

Graphite on off-white wove paper

Graphite on paper

Graphite on off-white laid paper, squared

Gouache over graphite on off-white wove paper

Black ink on off-white wove paper

Charcoal on cream laid paper

Watercolor and graphite on cream wove paper; verso: graphite, black ink, colored pencil

Charcoal on paper

Graphite on paper