Studies from Gropius' Berlin Office: Basement and upper floor plans, 1:200

Graphite on paper

Black marker on paper

Graphite and colored pencil on paper

Graphite on paper

Colored marker and black pen on paper

Graphite and green crayon on paper

Graphite on paper

Ink on paper

Graphite on paper

Graphite on paper

Graphite and watercolor on white wove paper

Watercolor, black ink, and graphite on beige wove paper