Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Splay in: plan and section (1/2" = 1'-0" and full size)

Oil on gessoed off-white wove paper

Graphite on paper

Graphite on off-white wove paper

Black ink and charcoal on cream laid paper

Graphite on paper

Black ink and white gouache over graphite on off-white wove paper

Graphite on paper

Black ink and gouache on cream wove paper

Black ink and white chalk

Brown marker on graph paper

Graphite on cream laid paper

Graphite on cream wove paper