Four-page promotional booklet advertising various raw materials manufactured and sold the Hercules Powder Company for a range of industrial applications, including pine and paper chemicals, synthetics, pigments, polymers, and cellulose.
Hercules Incorporated. “For Chemical Progress.” 1940 Hercules Advertisements, 1940. Records of Hercules Incorporated, Volume 1940. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/zc77sq83g.
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