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

Paper, glassine

Purple fiber-tip ink on white wove paper

Watercolor on darkened off-white wove paper

Black ink on off-white wove paper

Silverpoint on white prepared paper

Graphite on off-white wove paper

Graphite on paper

Graphite on white wove paper

Black ink on pale buff wove paper

Black ink on off-white wove paper

Graphite on paper

Graphite on paper