Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Northeast elevation (1/4" = 1'-0")

Black ink & gray wash over graphite on heavy off-white wove ppr; verso: graphite

Graphite and wax crayon on white wove translucent paper

Black ink on cream wove paper

Graphite on off-white laid paper

Black ink on frosted mylar

Graphite on graph paper

Black ink and charcoal on cream laid paper

Graphite on soft white wove paper

Graphite, watercolor and red crayon on cream wove paper

Black crayon on buff wove paper

Graphite on paper

Graphite on paper