Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Acoustic ceiling plans (3" , 1/2" = 1'-0")

Mixed media on paper

Watercolor, black ink, fiber-tip ink, synthetic paint, wax and pastel (?) on white paperboard

Pink-gray pastel with twelve incised lines on white wove paper

Black ink on off-white wove paper

Black ink, graphite, and yellow chalk on off-white wove paper

Charcoal on brown wove paper

Graphite on off-white wove paper

Graphite on paper

Graphite on off-white wove paper

Black crayon on off-white wove paper

Colored crayon with scratchwork on off-white illustration board

Watercolor on heavy buff wove paper