The American DeForest Wireless Telegraph Company had ten  operating stations at the Louisiana Purchase Exposition, From the main  tower a continuous stream of messages werebeing aerographed to different parts of the fairgrounds
and to various points of the City of St. Louis.
The DeForest installations at the World's Fair were  installed at considerable expense to DeForest, proved to be  a very lucrative investment, as contracts were made to supply
World's Fair bulletins to the newspapers of the prominent cities and towns within a radius of two hundred miles of St. Louis.

DeForest's aims  were also to make the stations the nucleus of a complete wireless system that  operated between Chicago and New Orleans.

A complete set of DeForest Wireless apparatus was  installed in the U. S. Government Building at the World's Fair,  operated under the direct supervision of a representative of the United States Patent Office. Seven of the patent office's  700,000 inventions were found most notable  and  one of those that  was selected was  the DeForest System of Wireless Telegraphy.  The Company also received the grand prize for their invention on `Electricity Day.'

The De Forest observation tower stood  at the entrance to Orleans Plaza,
300 feet in height, and was equipped with two electric elevators. Many visitors rode to the top to gain a grand view of the fairgrounds.

The wireless telegraph station on the tower was on a 100-foot platform, far above the building tops and over-looking Forest Park.

The walls of the station were made entirely of glass.

The St. Louis "Post Dispatch" and the St. Louis "Star" received regular  daily news service from this station. 3000 to 5000 words per day were transmitted at a rate of 25 to 35 words per minute, detailing such World's Fair news.
The Main Wireless Telegraph Tower
The Main Wireless Telegraph Tower Observation deck.
Lee  Gaskins'   AT THE FAIR  The 1904 St. Louis World's   Fair 
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