Vintage Case Ingersoll Tractor Used Rear Seat Support.  Part # C26695.  We started to prime the support and paint it with genuine Case Power Red paint.  The orange paint is now faded and dirty so it will need to be repainted.  The primer has some pitting underneath as well as shown in pictures.  Removed from a 448 model and will fit many other 200 and 400 series tractors.