Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Numerals - light signals (full size)

Graphite on brown wove paper

Watercolor over graphite on white wove paper

Black and/or brown ball point ink and black felt-tipped pen on two sheets of accordian-folded laminated Japanese paper, bound in a book

Crayon on paper

Watercolor and crayon on off-white wove paper

Graphite on off-white wove paper mounted to off-white cardboard

Graphite on off-white wove paper

Black ink on off-white wove paper

Watercolor on heavy buff wove paper

Graphite on off-white tracing paper

Charcoal on off-white laid paper

Graphite on off-white wove paper