Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Door frames in concrete walls: sections and elevation (3/8" =1'-0" and full size)

Graphite on paper

Graphite on off-white wove paper

Black ink with blue, red, and black ground pigments on off-white antique laid paper

Oil and watercolor over graphite on cream wove paper

Graphite on off-white wove paper

Watercolor on off-white wove paper

Black crayon on paper

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

Oil on white primed paper

Graphite on buff wove paper

Watercolor on cream wove paper

Graphite on off-white wove paper