Was the re-inforce lug on the rhs of the receiver of a no4 mk1 machined off in FTR?

[S-A-M3]

ssj, have been rereading your earlier threads, I have a particular liking for the No4 and have quite a number of Mk1/2`s, Mk1/3`s and Mk2`s, none NZ marked by the way. Send me a PM.
Stuart.