Building Addition and Alterations, Philadelphia, 1944-1946: Elevation and typical wall section (1/8" and 3/4" =1'-0")

Charcoal on white rough-finished Bristol board

Sketchbook with cardboard covers and spiral wire binding

Graphite on buff wove paper

Graphite on off-white wove paper

Watercolor and graphite on cream wove paper

Graphite and black and blue watercolor on off-white wove graph paper

Black chalk on off-white laid paper

Black ink on off-white wove paper

Black ink and charcoal on cream laid paper

Graphite on ivory wove paper

pen and ink sketch on ruled notebook paper

Black ink on white wove paper