Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Second floor and roof plan and sections (1/4" = 1'-0")

Watercolor over graphite on off-white wove paper

Graphite on tan wove paper

Black crayon on paper

Charcoal, red and white chalk on gray laid paper

Graphite on paper

Graphite on paper

Graphite and ink on paper

Leather bound sketchbook

Black ink, watercolor, and charcoal on off-white laid paper

Watercolor and graphite on off-white wove paper (recto and verso)

Watercolor and graphite on white wove paper

Black ink on tan wove paper