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

Graphite on paper

Watercolor on gampi paper

Watercolor over graphite on off-white laid paper

Black, white and brown chalk on blue paper

Charcoal on off-white wove paper

Black ink and graphite on off-white wove paper

Black ink on cream wove paper

Watercolor and graphite on off-white wove paper

Graphite on off-white wove paper

Black crayon on thin buff wove paper

Black ink and graphite on off-white wove graph paper

Black marker on graph paper