Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Revision of wall between pool and recreation room: elevation and plan (cancelled) (1/2" =1"-0" )

Black ink on off-white wove paper

Graphite and blue and black crayon on off-white wove paper

Acrylic, graphite, and computer print-out on off-white wove paper

Graphite on paper

Colored crayons on paper

Black ink, red and blue crayon, and graphite on cream wove paper; verso: brown wash and graphite

Graphite on off-white wove paper

Graphite on paper

Watercolor over graphite on off-white wove paper

Graphite on off-white wove paper

Crayon on discolored cream wove paper

Graphite on buff wove paper