"Haus Sonnenfang" Sanatorium, Berlin, 1931: South elevation, 1:500

Black crayon on paper

Red marker and graphite on paper

Black crayon on paper

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

Colored marker and black ink on paper

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Black crayon on brown wove paper

Graphite and colored pencil on paper

Graphite on paper

Black crayon on paper

Graphite on paper

Light purple marker on paper