Cornerstone of Edison Institute Signed by Thomas A. Edison, September 27, 1928

The cornerstone commemorates the dedication of The Henry Ford. It suggests a union of nature (Luther Burbank's spade) and technology (Edison's signature and footprints). That unity is borne out by the block itself, made from Portland cement refined from blast furnace slag at the Ford's Rouge plant--a great example of Henry Ford approaching industry like a good farmer, denying the concept of waste.