Hi Folks. Anyone seen this external hydraulic control valve before? This is on a Massey 65 and boy is it crusty. Trying to figure out if I can rebuild it or need to just junk it. I don't know much about these valves and this is my first tractor. To me, this looks like a double valve that is single acting on both. The left valve is missing the handle but has a locking mechanism that appears to lock the thing in either 3 point control mode or remote mode ( I think). I confirmed that when pulled back, the 3 point works, when pushed forward, no 3 point. I found one of these old control valves on ebay that came off a TO35 and it looks to be identical to mine. Anyway, any info would help. Appreciate you all!