Studies from Gropius' Berlin Office: Elevation, details, 1:20

Black and colored crayons on off-white wove paper

Black and red marker on paper

Ink on paper

Black and red marker and red pen on tape on paper

Graphite on off-white laid paper

Black ink on off-white wove paper

Graphite on paper

Charcoal on tan wove paper

Black crayon on paper

Graphite with brown and blue crayon on paper

Graphite, colored pencil, white chalk, and charcoal on paper

Black crayon on tan laid paper