john deere 1420

Perfect shape has 500 hrs on it,new gator blades this summer installed 612 490 7595

Our local tractor dealer (NH) has a john deere 1420 with a Yanmar Gas engine (odd?) and a 72 inch deck on it. 850 hours about, I heard that it came from the local university, which I believe. I can't find much about these online, other then it's part of john deere's commercial series. My dad...