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

Graphite on off-white wove paper (recto and verso)

Graphite wash, black crayon and watercolor on off-white wove paper

Graphite on paper

Charcoal on paper

Graphite on off-white wove paper

Graphite on paper

Graphite on off-white wove paper

Watercolor on heavy buff wove paper

Graphite and colored pencil on paper

Black ink, graphite and black type on commercially printed cream wove paper

Black ink and gray wash on cream laid paper

Colored crayons on paper