Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Outside stairs at servant porch; exterior door entry: plan, sections, elevations, details (1/2" , 1 1/2" , and 6" = 1'0")

Watercolor over graphite on cream wove paper

Charcoal and graphite (fixed) on off-white wove paper

Watercolor and white gouache over graphite on off-white wove paper

Watercolor, with extra binder, over graphite on cream laid paper

Graphite on mylar

Watercolor on white wove paper mounted to canvas mounted to a stretcher

Graphite and brown ink on off-white card

Graphite on graph paper

Black ink over graphite on thin tracing paper mounted to off-white cardboard

Black ink on off-white wove paper

Black ink, gray and white gouache, graphite, spots of turquoise ink, on cream wove paper; verso: black ink

Black crayon on tan wove paper