Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Wall sections through entrance (1 1/2" , 3" = 1'-0" and full size)

Graphite on off-white wove paper

Graphite on buff wove paper

Watercolor and oil on white wove paper

Red and black chalk on off-white tracing paper

Graphite on paper

Charcoal on off-white laid paper

Watercolor and black chalk on heavy off-white wove paper

Black chalk and charcoal on off-white laid paper

Turpentine wash with oil on off-white board

Graphite on cream wove paper

Graphite on off-white wove paper

Graphite on paper