This unissued stock certificate comes from the Mickey Mantle Tire Company, Inc., which was established to go to market with the "Mickey Mantle Home Run" tire. The partnership would later become the Burggraf Corporation of Quapaw OK, established by Clarence E Burggraf, founding shareholder of the Mickey Mantle Tire Company, Inc. The fact that this is the first of its kind we have ever seen makes this a rare and extremely valuable find.