Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Main stairs: plans, elevation and sections (1/2" , 3" =1"-0" )

Graphite on darkened wove paper

Gouache and graphite on white Fome-Cor

Black ink on frosted mylar

Black ink on tan wove paper

Graphite on off-white wove paper

Black ink on off-white wove paper

Graphite on off-white wove paper

Blue-black ink on off-white wove paper

Black ink on white wove paper

Crayon on paper

Black ink, graphite, red pencil, and collage on off-white wove paper

Leather bound sketchbook