Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Interior details of room #219: plans, elevations, details (cancelled) (1/2", 1 1/2" = 1'-0" and full size)

Black and blue crayon ; black and green crayon on paper

Graphite on off-white wove paper

Graphite on off-white wove paper

Graphite on paper

Black ink, watercolor, and charcoal on cream wove paper

Graphite, black ink, and yellow chalk on darkened off-white wove paper

Black ink on off-white wove paper

Black ink on thin off-white wove paper

Black ink on cream wove paper

Graphite on off-white wove paper

Graphite on off-white wove paper

Graphite on buff laid paper