Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Telephone niche in swimming pool: plan, elevation and section (1/2" and 3" = 1'-0")

Watercolor and gouache over graphite on white wove paper

Graphite on paper

Leather bound sketchbook with additional four drawings on scrap paper

Charcoal on off-white laid paper

Black ink and graphite on off-white wove paper

Colored pencil over graphite on off-white wove paper

Brown, red and black printer's ink with graphite and hand-printed collage elements on two joined sheets of cream handmade paper

Oil on paper

Colored and black crayon on buff wove paper

Black ink on off-white wove paper

Black chalk, charcoal, and graphite on off-white laid paper

Black crayon on thin buff wove paper