Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Section through pool wing (1 1/2" = 1'-0")

Graphite on paper

Black gouache and graphite on two sheets of drafting film, joined

Graphite on thin off-white wove paper

Black chalk and charcoal on off-white laid paper

Graphite and black crayon ; black crayon on paper

Graphite on off-white wove paper

Graphite on off-white wove paper

Black, white, and red chalk on light green wove paper

Black ink on off-white wove paper

Opaque watercolor over graphite on tan illustration board, prepared with white ground

Oil and crayon on wove paper

Charcoal and sanguine on paper