As I mentioned before; the strange part is that the rifles I've seen with the replacement receivers were all in what looked to be nice, original conditon before the receivers were replaced. I have another 1956 LB receiver here with matching bolt that was used for a lunch box C No.7 project. I've since pilfered the barrel and built a shooter for myself using an original surplus C No.7 receiver. The 1956 was numbered in the 1Lxxx serial range as a .303.