Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Outside stairs at servant porch; exterior door entry: plan, sections, elevations, details (1/2" , 1 1/2" , and 6" = 1'0")

Black ink and black crayon on off-white laid paper

Watercolor and graphite on heavy off-white wove paper

Mixed media on paper

Black ink on off-white card

Crayon on paper

Watercolor over graphite on off-white wove paper

Crayon on paper

Crayon on paper

Charcoal, oil stick, acrylic, and Liquid Paper on white wove paper

Watercolor and white gouache on beige wove paper, mounted on buff wove card

Collage

Black ink on off-white wove paper