I'm going out on a limb here but to me it looks like a LCG tractor , 600 0rn a 4 cyl 2000 with ag tires added. I've never seen a regular ag tractor with that low a front end. An old friend of mine bought an old 4 cyl 2000 LCG tractor and took off the turf tires and put ag tires on it and that is how it looked