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The Coraopolis and Neville Island Uncirculated Stock Certificate is a rare and valuable collectible item from the United States. This stock certificate represents a piece of history from a specific company that has never been circulated, making it a highly sought-after item among collectors of stocks and bonds. Its pristine condition and unique design add to its appeal, making it a valuable addition to any collection of scripophily.

Construction: The bridge it oversaw was constructed between 1893 and 1894 to carry a trolley line (the Pittsburgh, Neville Island, and Coraopolis Railway Company).
Replacement/Acquisition: The company's original structure was removed and replaced in 1927 when Allegheny County purchased the bridge and installed a repurposed structure. This marks the likely end of the private company's operation of the asset, as the County became the owner and operator.

Therefore, the company was active in its original form from at least 1892 (when the railway company was organized for the project) until around 1927, after which it would have been dissolved or absorbed following the sale of the bridge.