Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Pipe sleeve and footing, dining terrace: sections (3" = 1'-0")

Graphite on paper

Paper

Watercolor over graphite on off-white wove paper

Charcoal on off-white laid paper

Brown ink and wash and watercolor over graphite on buff card

Charcoal and white and purple chalk on brown wove paper

Transparent and opaque watercolor on Japanese paper, mounted overall

Oil and watercolor over graphite on off-white wove paper

Black ink on off-white wove paper

Graphite on paper

Graphite on off-white wove paper

Graphite on paper