Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Terraces G and C: plans and elevations (1/4" , 1/2" = 1'-0" and full size)

Watercolor over graphite on off-white wove paper

Graphite on paper

Black ink over graphite on off-white laid paper

Graphite on cream wove paper

Black ink of off-white wove paper

Charcoal on cream laid paper

Charcoal on off-white laid paper

Graphite on paper

Graphite on cream wove paper

Colored crayons on paper

Red chalk on gray wove paper

Crayon on paper