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

Graphite on paper

Graphite on paper

Colored marker and black pen on paper

Black chalk on white wove paper

Watercolor on paper

Colored marker on paper

Ink on paper

Graphite on paper

Ink, gouache and spatter paint on composition board

Graphite on paper

Ink on paper

Black crayon on paper