Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Flower box on first terrace: plan and sections (1 1/2" = 1'-0")

Graphite on off-white wove paper

Graphite on paper

Transparent and opaque watercolor and graphite on white wove paper

Watercolor and graphite on off-white wove paper

Graphite on paper

Gouache over graphite on buff paper mounted on composition board

Watercolor on heavy buff wove paper

Black ink on off-white wove paper

Watercolor and white gouache on blue wove paper

Graphite on paper

Graphite and black crayon with touches of white chalk on tracing paper

Graphite on buff wove paper