Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: General layout of mechanical and boiler equipment: plan and sections (1/4" = 1'-0" )

Graphite on paper

Watercolor and graphite on cream wove paper

Black ink on hand made rag wove paper

Collage of fern leaves on red wove paper

Watercolor on off-white wove paper

Graphite on darkened off-white wove paper

Graphite and blue crayon on off-white wove paper

Graphite on off-white wove paper

Graphite on thin off-white wove paper

Watercolor over graphite on buff wove paper

Black ink on off-white wove paper

Black ink and gray wash over graphite on off-white wove paper