Design for factory wall: Electro-combine with chart at left showing growth of the society of inventors

Black chalk on cream antique laid paper

Colored marker on paper

Black, brown, and blue crayon on paper

Colored marker on paper

Black ink

Charcoal on cream laid paper

Graphite on paper

Black, blue and pink crayon on paper and mounted

Graphite on paper

Graphite on paper

Gray wash and graphite on off-white antique laid paper, partial framing line [?] in graphite and gold

Black ink on cream wove paper