Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Carpet strip locations: detail (full size)

Charcoal on off-white wove paper; verso: charcoal and graphite on paper

Graphite on darkened buff wove paper

Chalk and charcoal on cream wove paper

Crayon on paper

Watercolor and white gouache on heavy off-white wove paper

Graphite on cream wove paper

Charcoal on off-white laid paper

Black ink on off-white wove paper (recto and verso)

Graphite on off-white wove paper

Graphite on paper

Turpentine wash with oil on white board

Oil on tracing paper