Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Method of securing structural glass at head of bathroom windows: details (full size)

Sepia ink and acrylic varnish on off-white wove paper mounted on aluminum

Black ink and charcoal on cream laid paper

Ink on paper

Black ink on off-white wove paper

Collage with watercolor, distemper, graphite and paper on brown wove paper

Graphite on off-white wove paper

Graphite on off-white wove paper

Graphite on paper

Brown wash over graphite on cream wove paper

Black ink and colored pencil on white wove paper

Black ink on off-white wove paper

Watercolor over graphite on off-white wove paper