Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Second floor and roof plan and sections (1/4" = 1'-0")

Graphite on off-white wove paper

Graphite on paper

Watercolor and white gouache over graphite on cream wove paper

Black ink and gray wash on cream wove paper

Charcoal on cream laid paper

Graphite on cream wove paper

Graphite, with some stumping, on cream wove paper

Graphite on cream wove paper

Graphite on paper

Watercolor on ruled off-white wove paper

Graphite on off-white wove paper

Graphite on off-white wove paper