Building Addition and Alterations, Philadelphia, 1944-1946: Scheme 3: floor plans and section (1/32" = 1'-0")

Watercolor, black ink and white gouache on heavy buff wove paper

Watercolor and white gouache over graphite on off-white wove paper

Graphite on off-white wove paper

Black conté crayon on ivory tracing paper

Red chalk on off-white laid paper

Graphite on off-white wove paper

Black crayon on paper and mounted

Black ink on white illustration board

Black crayon on thin ivory wove paper

Watercolor and graphite on white wove paper

Graphite on buff wove paper

Black ink and yellow chalk on off-white wove paper