Is this a SMLE piling svivel?

[Roy]

I have just purchased a few piling swivels to complete some of my rifles. I however have doubts they are for the SMLE.

They were advertised as having oversize lugs, supposedly to compensate for worn nosecap lugs. They have rounded tips (this did not match the photo on the website) and the lug profile is also a bit different to the pics i can see online of square tipped piling swivels. Also they are not marked in any way.

I suspect they are from Patt 14 or 17 rifles but am not sure if there was difference, perhaps just a difference in manufacturing procedures.

any ideas?

Information

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[Mk VII]

Quite a lot of these oversized ones are available here, and I nearly always have to carefully file of grind the shank down when fitting one to somebody's rifle.

[No4Mk1(T)]

If you find a W, E or R stamping its likely From a P14/M1917.