Stock certificate for the Edison Portland Cement Company, one page, 12 x 8.25, November 5, 1910. Stock certificate for 1250 shares issued to Robert H. Thompson, signed at the conclusion by two company executives. The handsome vignette features a portrait of Thomas Edison. 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 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.
