Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Long section through skylight over pool (1/2" and 3" = 1'-0")

Black ink and white gouache over graphite on off-white wove paper

Graphite on off-white laid paper

Graphite on paper

Black ink and black watercolor on tan wove paper; verso: black ink

Graphite on paper

Graphite on heavy weight, white card stock (Strathmore Bristol board)

Watercolor on paper

Graphite, gouache and oil on prepared dark blue wove paper

Black ink on off-white wove paper

Black marker and graphite on graph paper

Graphite on paper

Tempera on purple construction paper