Thanks for all the info guys...so it seems like since the bolt was scrubbed, the barrel receiver were new, there really were no parts to carry over from a 1941 rifle for this build....so it kinda remains a mystery why and whoever did this chose to use a early serial #......heck it's not even really a LB serial # given that it's 5 digits after the prefix L. Safe to say then it was more than likely not built by Canadianicon Arsenals?