Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Terrace layout - terrazzo: plan (3/8" = 1'-0")

Sketchbook with beige cloth-covered cardboard covers

Graphite on paper

Graphite on cream wove paper

Charcoal and purple chalk on brown wove paper

Black ink, charcoal, watercolor, and watercolor pencil on cream laid paper, edges taped

Graphite on paper

Black and colored crayons on paper, mounted

Graphite on mylar

Black ink on off-white wove paper

Graphite on paper

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

Watercolor and black ink over graphite on off-white wove paper