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

Black crayon on off-white wove paper

Graphite and black ink on off-white wove paper (recto and verso)

Blue-black ink on ivory wove paper

Graphite and black chalk on off-white wove paper

Graphite on off-white wove paper

Graphite on off-white wove paper

Black ink and watercolor on thin cream wove paper; verso: watercolor and crayon

Watercolor and white gouache over graphite on cream laid paper

Graphite on green wove paper

Black, red, and white crayon on yellow wove paper, mounted on board

Watercolor and graphite on cream wove paper

Colored pencil and graphite on off-white modern laid paper