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

Black crayon and ink on paper

Black ink and graphite on off-white wove paper

Graphite on off-white wove paper

Watercolor over graphite on off-white illustration board

Graphite on cream wove paper

Metalpoint on white prepared paper

Watercolor over graphite on heavy off-white wove paper

Graphite on off-white wove paper

Watercolor and selectively applied glaze on off-white modern laid paper

Graphite on off-white wove paper

Watercolor on off-white wove paper

Black ink on off-white wove paper