Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Location of lights in swimming pool

Watercolor and graphite on off-white wove paper

Gouache and watercolor on off-white wove paper

Two kinds of graphite, colored wax crayons, spatters of oil paint, squared in graphite and brown crayon, on cream wove paper mounted on masonite

Ink on slide film, hand colored

Spray paint on paper

Red and black conté crayon on ivory tracing paper

Charcoal on cream laid paper

Graphite on green prepared paper

Charcoal on off-white laid paper

Black ink on off-white antique laid paper

Graphite on thin off-white wove paper

Watercolor over graphite on off-white wove paper