An Important Merger in the Amateur Motion Picture Field, DeVry Movie News“An Important Merger in the Amateur Motion Picture Field,” DeVry Movie News, April, 1929.
Cover of <em>The Chemistry of Photography</em>, by Mallinckrodt Chemical WorksPhotographic chemicals were a mainstay of the Mallinckrodt Company, which kept a careful eye on developments in the rapidly evolving…
Notice by Importer Arthur SchwarzPhotographic chemicals were one of the Mallinckrodt Company’s core product lines. Edward Mallinckrodt Sr. began selling Rodinal, a photographic developer,…
Rodinal AdvertisementGerman and German-American firms were key players in the photographic chemicals trade in late nineteenth-century America. Rodinal, a photographic chemical…
