Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Pergola details: sections (3/4" = 1'-0")

Brown ink and blue pencil on off-white machine-made rag wove paper

Ink on paper

Charcoal and colored chalks on a ground of rubbed charcoal heavily modeled by erasures, on off-white wove paper, mounted on Kraft paper and wrapped around a strainer

Gouache on off-white wove paper

Colored chalks

Graphite on thin buff wove paper

Watercolor on ruled off-white wove paper

Ink on paper

Graphite on off-white wove paper

Graphite on paper

Black and red fiber-tip pen and blue ink on spiral notebook paper

Charcoal and graphite on off-white laid paper