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"Memories of the World's Greatest Exposition, St. Louis, 1904" / James Bayne Company. 1904. Souvenir book of black and white full-page photographs documenting the Louisiana Purchase Exposition in St. Louis, Missouri. The American DeForest Wireless Telegraph Co. operated a wireless telegraph demonstration at the top of the observation tower, a photograph of which can be seen on the last page.
American De Forest Wireless Telegraph Co Louisiana Purchase Exposition (1904 : Saint Louis, Mo.) De Forest, Lee