Partly-printed DS, signed "Thos. A. Edison," one page, 15.5 x 8.25, August 19, 1899. Stock certificate issued to Thomas A. Edison for 1,000 shares of capital stock in The Edison Portland Cement Company, featuring a fabulous engraved portrait of the inventor at the top, signed on the receipt affixed to the left edge by Edison in black ink, "Thos. A. Edison," and again on the reverse in green ink to approve the transfer of the stock, "Thomas A. Edison." In fine condition. Accompanied by a full letter of authenticity from JSA.
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 a 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 history and featuring two signatures—including a very scarce full example—this is a superlative piece.
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