Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Details of model base and location model (1/2" , 1 1/2 , 3" = 1'-0" and full size )

Graphite and charcoal on white wove paper, laid down on card

Charcoal on off-white laid paper

Graphite on off-white wove paper

Graphite on tracing paper

Crayon on paper

Graphite and colored pencil on tracing paper, bound with white and yellow tissue interleaving sheets, and hardbound with grey cloth binding

Black ink on off-white wove paper

Ink on paper

Graphite on paper

Black ink on off-white wove paper

Graphite on off-white wove paper

Black ink on off-white wove paper