Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Pergola - Upper garden: plan and elevations (1/2" = 1'-0")

Two kinds of graphite, colored wax crayons, spatters of oil paint, squared in graphite and brown crayon, on cream wove paper mounted on masonite

Black ink and gray wash on cream laid paper, mounted to brown wove paper

Colored crayons ; black crayon on paper

Black crayon on thin cream wove paper, set down to tissue

Graphite on coated off-white wove paper

Oil on white primed paper

Mixed media on paper

Watercolor over graphite on illustration board

Silverpoint on illustration board

Graphite on paper

Gouache on cream laid paper

Graphite on cream wove paper pastedown of sketchbook cover