Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Stairs at swimming pool: plans, elevations, sections (3/4" =1"-0" )

Black ink on tan wove paper

Acrylic paint and graphite on brown wove paper

Graphite on off-white wove paper

Graphite on off-white wove paper

Graphite and staples on layered and cut translucent vellum paper

Graphite on paper

Graphite on off-white wove paper

Watercolor, masking tape and graphite on off-white wove paper

Watercolor and graphite on layered off-white wove paper

Colored chalk on off-white wove paper, set down to brown wove paper

Graphite on paper

Graphite on off-white wove paper