Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Details of main stair (1/2" , 3" = 1'-0" and full size)

Watercolor over graphite on off-white wove paper

Black and red chalks on thin off-white wove paper

Crayon on paper

Red chalk and graphite on off-white wove paper

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

Black ink on off-white wove paper

Graphite on off-white wove paper

Charcoal on cream laid paper

Watercolor and charcoal on heavy white wove paper

Graphite on buff wove paper

C-print (yellow color separation) mounted on foam-core with black ink grid, and acrylic airbrush marks

Graphite and ink on paper