Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Revision of wall between pool and recreation room: elevation, sections and details (1/2" , 1 1/2" , and 3" =1"-0" )

Watercolor, gray wash, and graphite on off-white wove paper

Graphite on cream wove paper

Graphite on off-white wove paper

Black ink and colored chalk on translucent buff wove paper

Graphite on off-white wove paper

Black ink on off-white card

Black ink, gouache, and graphite, incised, on paperboard

Graphite on buff wove paper

Watercolor over graphite on off-white wove paper

Graphite on off-white laid paper

Watercolor and white gouache over graphite on heavy off-white wove paper

Graphite on paper with irregular left edge