Massey Ferguson 20 - Tractor Forum
The MF20 is an Industrial tractor, about the same tractor as the MF135. I think it was manufactured 1964 - 1975. Probably has a heavy duty front axle for loader work. It has a 3 cylinder Perkins, great engine. The 3000 hours are low if correct (3000 hours over a 45 year life averages out to 67 hours per year).