Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Curtained enclosure - roof deck 308: plan, elevation, and details (1/2" = 1'-0" and full size)

Graphite on translucent vellum paper, the reverse printed with a grid

Ink on paper

Charcoal heightened with white chalk on white paper

Black ink over graphite, with touches of white gouache, on cream board

Graphite on buff wove paper

Opaque watercolor and graphite on paper-faced board

Watercolor and selectively applied glaze on off-white modern laid paper

Oil on paper

Charcoal and white chalk on brown laid paper

Graphite on off-white wove paper

Charcoal on off-white laid paper

Black crayon and ink on paper