Martin Birnbaum (1878-1970)

Charcoal pencil on white wove paper

Graphite on paper

Graphite and white gouache on blue laid paper

Charcoal and graphite (fixed) on off-white wove paper

Red ink (printed and drawn) and graphite on Kraft paper

Graphite and graphite wash on layered translucent vellum paper

Graphite on ivory laid paper

Charcoal and white chalk on blue laid paper

Charcoal on off-white laid paper

Black ink on frosted mylar

Black felt-tipped pen on yellowed newsprint paper

Graphite on paper