Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Curved stair window and adjoining door: plan and details (1/2" , 1 1/2, 3", 6"= 1'-0" and full size)

Gouache on acetate film affixed to cardboard

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

Watercolor and graphite on cream wove paper

Black, brown, blue and purple crayon on paper

Black crayon and ink on paper

Graphite on paper

Charcoal and white chalk on brown laid paper

Paper

Black ink over graphite on off-white wove paper

Watercolor on paper

Watercolor over graphite on off-white wove paper

Acrylic, graphite, and computer print-out on off-white wove paper (12 drawings)