Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Second floor and roof plan and sections (1/4" = 1'-0")

Graphite on paper

Graphite on paper

Watercolor over graphite on off-white wove paper

Graphite on off-white wove paper

Black chalk on off-white wove paper

Graphite on cream colored-paper industrially-lined paper in a wire bound notebook with printed, coded, brown cardboard.

Graphite on off-white wove paper

Graphite on off-white wove paper

Watercolor and white gouache over graphite on off-white wove paper, mounted overall to beige cardboard

Black ink, gray wash, and graphite on moderately textured cream paper

Graphite on off-white wove paper

Graphite on paper