I bought this pristine, mint and unissued British No. 4 Mark II .303 rifle out of the Shotgun News many years ago. Amazingly, it came still wrapped up in its original paper covering that had been torn in two places to etch on a serial number with an electric pencil. This was done on the side of the receiver and the bottom of the magazine. I heard that this was one of the last batch of these made and was found in a stash in Ireland. Interestingly, the rifle as it was stored in the paper wrap did not originally have a serial number anywhere on it which seems strange to me. How would they have kept track of them after they were issued.