Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Northwest elevation, (1/4" =1'-0")

Green watercolor and black ink on off-white wove paper

Black conté crayon on ivory tracing paper

Graphite on heavy blue wove paper

Crayon on paper

Black ink on cream wove paper

Charcoal on off-white wove paper

Graphite on paper

Black ink and graphite on off-white wove paper

Black ink, graphite, and yellow chalk on off-white wove paper; verso: black ink

Black ink on tan wove paper

Charcoal on cream laid paper

Graphite on off-white wove paper