Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Revision of wall between pool and recreation room: elevation and plan (cancelled) (1/2" =1"-0" )

Gouache and graphite on white Fome-Cor

Red ink on cream wove paper

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

Black ink on off-white wove paper

Graphite on paper

Graphite on paper

Black ink on cream laid paper

Watercolor over graphite on off-white wove paper

Watercolor and graphite on off-white wove paper

Black ink and graphite on off-white wove paper

Black ink and charcoal on beige wove paper

Charcoal on off-white laid paper