Could you get a few photo's showing the body pads with the scope & bracket off? Even with the photo's you've sent us so far I am afraid, at least IMHO, your rifle has been made up.
The scope is a genuine Kodak No32 Mk1 but has been painted at some point in its career (in fairness this could have been done in military service - though Kodak scopes left the factory blued).
The bracket is a modern Pacific Rim copy that has had what I presume is your rifle serial number stamped into it.
Assuming the above is correct, & from the receiver side wall, it looks like your rifle is an early Fazakerley rifle. Whilst not true to say that no Faz rifles were converted to T specs, almost none were. Original examples are extremely scarce.
The S51 on the underside of the butt I suspect is bogus.
It is straining my eyes to make it out, but I think the butt is actually dated 1950 (F50).
The centre punch marks on the front pad look fairly recent-ish to me, & I suspect the rifle itself is also not a genuine 4T, though I would like to see more photo's showing the side of the body/receiver with the scope & bracket off, & also a view showing the butt socket markings, to be more sure.
I am sorry if this is not what you want to read, but I think it is the case, & it is better that you know. Perhaps others might chime in & have different views....