Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Connector enclosures, second and third floors: details (1/2" = 1'0")

Black ink, white gouache, and black crayon on off-white laid paper

Black ink on off-white wove paper

Graphite on off-white wove paper

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

Acrylic paint on paper mounted on masonite

Colored crayon and scratchwork on off-white illustration board

Black ink, watercolor (oil wash?), and white gouache on cream wove paper

Graphite on paper

Graphite on paper

Pastel and graphite on white wove paper

Collage and watercolor

Blue ball-point ink on cream wove paper