"SMT.LE" marked receiver

[Surpmil]

how do you know that your #3's were in WW1. Vickers were not able to produce them quick enough so mostly they stayed at home unless they were converted for sniper use. in WW2 they were mostly issued to the home guard

I think dirty doc was probably referring to his SMLE's as "#3's", rather than the P14, aka No.3 MkI.