Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Receivador in rear door #101: elevation, section, and detail (1" =1'-0")

Brown ink, blue wash over graphite on white wove paper

Watercolor and white gouache on cream wove paper

Graphite on translucent vellum paper

Graphite on paper

Graphite on off-white wove paper

Black ink on cream wove paper

Graphite on light green wove paper

Black ink on off-white wove paper

Turpentine wash with oil on white board

Graphite on off-white wove paper

Black ink, graphite, and yellow chalk on off-white wove paper

Graphite on paper