You never knowDoes the extra 'E' denote electric?
It means it's a TVO narrow wheel (vineyard) version.
I can't remember all the codes of the top of my head, but TEA was normal width petrol. TED was normal width TVO.
Can't remember when Ferguson started making the narrow width version, as the original narrow width conversions were done by Reekie (predecessor to the current potato equipment manufacturer in the Angus area), where they essentially cut the rear axle trumpets down, and welded them back together, as there was demand for a tractor narrow enough to be used by soft fruit growers in the area. My grandad bought the TEE for working raspberries/currants from a local farmer who had originally bought it for working in the stocks. The tractor hasn't ever stayed anywhere more than 5 miles from the original supplying dealer.
My dad then replaced the Fergie with a MF135 Vineyard, and the Fergie was relegated to the back of the shed for many years.
As iconic as Grey Fergies are, they are a very basic tractor, verging on being impractical for practical use.
Only draft control linkage, so you can't accurately control linkage height.
Single clutch, so when you clutch to change gear the PTO and hydraulics stop, or even worse, with the wrong equipment the PTO keeps driving it!
Pretty high geared, so not good for low speed work.
The 35 did improve on those issues, but it was really the MF100 series where things became far more useable, with dual clutches (or IPTO), and separate height and draft linkage controls.
You can't even really call the Fergie that revolutionary, as it was it's predecessor the Ford Ferguson that revolutionised ploughing with Ferguson's draft control system. The Fergie was the second mass produced tractor to use draft control, and was only produced after Harry fell out with Henry.
It is however the only tractor to have had over 500'000 sold.