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Partly-printed DS, one page, 15.75 x 8, December 1, 1905. Stock certificate issued to the “Edison Manufacturing Company” for 1,404 shares of capital stock in The Edison Portland Cement Company, the top of which features a fabulous engraved portrait of the inventor, who has signed neatly on the reverse in ink to approve the transfer of the stock, "Thomas A. Edison." The document is signed at the conclusion by two company executives and the receipt affixed along the left edge remains intact. In fine condition.
In addition to his more famous ventures, Edison was a pioneer in the use and manufacture of cement. After devising a method of using waste sand from his Edison Ore-Milling Company as the basis for quality cement, he established the Edison Portland Cement Company in 1899. He experimented with many applications of his creation and believed it to be the stuff of the future, envisioning a world of concrete houses filled with concrete furniture, refrigerators, and even pianos. In 1922, the company was responsible for building the original Yankee Stadium. Representing this little-known aspect of Edison's history and featuring a very scarce full signature, this is a superlative piece.
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