Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Splay in: plan and section (1/2" = 1'-0" and full size)

Graphite on off-white wove paper

Charcoal on cream laid paper

Brown ink and blue ball-point ink on thin ivory wove paper

Red-orange crayon and graphite on off-white wove paper

Black and red chalk on white wove sketchbook paper

Copperpoint with silverpoint border on commercially prepared paper

Graphite on paper

Black ink and black and colored pencil and crayon on cream wove paper

Watercolor and white gouache over graphite on buff laid paper

Graphite on paper

Graphite on paper

Black crayon on paper