Have you asked Case (assume that is the source) about it? Take pictures of all six sides and send places like Messick's or Surplus Center (they both advertise on TBN). Identify the views as stacked. They have some pretty Skookum folks that may know. Make sure any letters or numbers are highlighted or written separate and where located on the valve. Any identification on the end closure plates? The color may narrow the make tractor. Like blue for New Holland.
