Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Glass partition receiving modernfold door: sections and details (3" =1"-0" and full size)

Watercolor and black ink on off-white wove paper

Graphite on off-white wove paper

Graphite on off-white wove paper

Graphite on white wove paper

Graphite on off-white wove paper

Graphite on gray wove paper

Opaque watercolor over graphite on off-white wove paper

Charcoal on gray laid paper

Black ink on tan wove paper

Black ink and graphite on graph paper

Black ink and graphite on off-white wove graph paper

Graphite on brown laid paper