Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Plan section of wall and axonometric of bar spit anchor (6" = 1'-0" and full size)

Black ink on tan wove paper

Graphite on off-white wove paper

Opaque watercolor (black and red) and graphite on paper board

Black and red inks over graphite on off-white wove paper

Charcoal on blue laid paper

Transparent and opaque watercolor and charcoal on heavy white wove paper

Graphite and white chalk on gray laid paper

Graphite and ink on transparent paper

Graphite on off-white wove paper

Oil on green prepared paper

Watercolor on heavy off-white wove paper

Watercolor and black ink on off-white wove paper