Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Stairs at swimming pool: plans, elevations, sections (3/4" =1"-0" )

Oil on paper

Watercolor, black ink, metallic paint over graphite on cream wove paper; verso of sheef affixed to album leaf: graphite; verso of album leaf: graphite

Graphite on paper

Watercolor over graphite on off-white wove paper

Graphite on off-white wove paper

Watercolor over graphite on off-white wove paper

Colored pencil, graphite, and black ink on cream wove paper; verso: watercolor and graphite

Watercolor over graphite on buff laid paper

Black ink and white gouache over graphite on off-white wove paper

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

Watercolor and gouache on off-white illustration board

Watercolor over graphite on off-white wove paper