With a cast front your tractor is a MK1
If it was a early MK1 (yellow and red colours) the chassis and engine number would be on a cast aluminium makers plate mounted on the right chassis.
From what I can see your tractor is the Co-op Blue colour and the chassis has fixing holes for the underslung toolframe so I think this is a later MK1 where the chassis and engine numbers were on a brass makers plate on the dashboard to the right of the steering column.
A few more photographs would help further identification and if it still has the original engine number (on a machined flange over the manifold) I have Ford manufacturing records and can date engine production date.
Lucas also stamped date of manufacture on starter and dynamo so have a look at those
Happy to help and you can contact me on 01926 632509
regards Joe Paget