Need help identifying this Sten

[gsimmons]

I guess I should've been clearer in my wording(or lack of it). I was trying illustrate the differences in the types of welds used, and can it be used to date a mag. housing? The example used in the book (Sten Machine Carbine) on page 49 is an Elkington made one, does the same apply to the OP's and mine?