Studies from Gropius' Berlin Office: Section, 1:200

Colored marker and blue pen on paper

Black crayon on paper

Pastel on composition board

Black crayon on paper

Graphite on paper

Black, blue, and yellow crayon on paper

Gouache, black ink, and graphite on cream wove paper

Colored marker on paper

Black and red marker on paper

Black and gray marker on paper

Colored marker and black pen on paper

Graphite on paper