Inner Shoe for IH Farmall Cub Tractor McCormick Cub C22 and Cub L22 Sickle Bar Mowers.
Also used on IHC 22 sickle mowers used on Super A thru 140 IHC tractors.
Sometimes referred to as outer sole or shoe.
Case IH part number M259X.
Also used on many other IHC sickle bar mowers.