Silver Metallic or Maybe Pewter Metallic Partial Cattlehide Side.  About 12 square feet of total surface area, with thickness of 3.5 to 4 ounces per square foot.  This is about the same as 1.4 – 1.6 mm for all of you who successfully converted to the metric system back in 1975.  This is a soft leather, suitable for garments or upholstery work.  This one will set you back $60, with free USA shipping.  Clearance item 1850, by the way.