Studies from Gropius' Berlin Office: Site plan and section, 1:500

Black crayon on paper

Graphite on paper

Black pen on paper

Graphite on paper

Colored crayon on paper

Graphite on paper

Opaque and transparent watercolor, black ink, and graphite on off-white wove paper

Black and colored crayons on off-white wove paper

Colored crayon on tan wove paper

Graphite on paper

Graphite and red crayon on paper

Graphite and blue crayon on paper