Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Revised duct location: plan for 208 (1/4" = 1'-0")

Black crayon on thin ivory wove paper

Graphite on white wove paper

Watercolor and graphite on off-white wove paper

Watercolor over graphite on illustration board

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

Paper collage ("paste-up"), mounted on brown paper

Black ink and charcoal on cream laid paper, edges taped

Graphite on off-white wove paper

Black ink and gray wash on cream moderately textured wove paper

Black ink over graphite on thin tracing paper, mounted to off-white cardboard

Graphite on paper

Watercolor on off-white wove paper