Non-Ferrous Metals Exhibit for "German People--German Labor" Exhibition, Berlin, 1934: Isometric

Black marker on paper

Black and red marker on paper

Black, orange, and blue crayon on paper and mounted

Colored crayons on paper

Graphite on paper

Aqua crayon on paper

Black crayon on paper

Graphite on envelope

Black, gray, and red marker on paper

Black marker on paper

Colored crayons on paper

Black ink on cream wove paper