Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Sash revision, master bedroom: plan, elevation, section (1/2" =1"-0" )

Black fiber-tip ink and blue and black ballpoint ink on cream wove paper

Graphite on paper

Graphite and charcoal on off-white wove paper

Black ink and graphite on off-white wove paper, mounted to cardboard

Watercolor over graphite on off-white wove paper

Watercolor on off-white wove paper

Black ink and watercolor pencil on cream laid paper, edges taped

Watercolor on off-white wove paper

Graphite on paper

Black crayon on off-white laid paper

Graphite on off-white wove paper

Colored pencil over traces of graphite squaring on buff wove paper