Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Case in 220: details (1 1/2" = 1'-0" and full size)

Graphite on off-white laid paper

Graphite and red chalk with touches of black ink on off-white tissue paper

Colored crayon on thin off-white wove paper

Black ink, graphite, and yellow chalk on off-white wove paper

Black crayon on off-white wove paper; verso: graphite wash and graphite

Graphite on paper

Brown chalk on buff wove paper

Black and pink crayon on paper

Graphite on off-white wove paper

Charcoal on cream laid paper

Sketchbook with cardboard covers and spiral wire binding

Graphite on thin off-white tracing paper