Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: First floor plan

Monotype on off-white wove paper; verso: watercolor, oil pastel(?), and graphite

Black ink on off-white wove paper

Red chalk on buff wove paper

Graphite on paper

Graphite on paper

Crayon on paper

Watercolor on off-white wove paper

Crayon on paper

Graphite on paper

Black crayon and ink on paper

Graphite on paper

Graphite on white wove paper