Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Location of stone retaining walls with cedar screens: plan and sections (1" = 1'-0")

Crayon and graphite on brown wove paper

Black ink on cream wove paper

Graphite on paper

Graphite and ink on translucent wove paper

Graphite on cream wove paper

Watercolor and white gouache over graphite on off-white wove paper

Watercolor on paper

Black ink, graphite, and yellow chalk on off-white wove paper; verso: black ink

Ink, gouache, and natural material on paper

Transparent and opaque watercolor over graphite on white wove paper

Black ink and gray wash over graphite on off-white wove paper

Graphite on paper