Studies from Gropius' Berlin Office: Upper floor plan, 1:50

Graphite on paper

Colored marker on paper

Graphite on paper

Graphite on paper

Charcoal on cream wove paper

Black marker on paper

gouache, watercolor, red pencil, and graphite on white wove paper, double-sided, two sheets joined

Black crayon on paper

Graphite on tan wove paper

Colored marker on paper

Graphite on paper

Black crayon on paper