that's looks like what we US guys call a T030
That's the one. Known as a TEA20 here. Built 46 to 56 came from retooling of wartime factories to peace time output. Suggest this machine will be in my estate sale!! Started out at about 20HP and ended up with 30 horses with the petrol standard engine. The MF35 is a leap forward in technology plus power/torque different clutch system, PTO etc and was a combination of Massey & Ferguson to build an unbeatable 3 cylinder diesel.