I have a 52 Classic in 30-06. Was interested in getting an Excaliber stock (try to save the walnut stock) from Cooper for it until I found out how much that would cost. They, Cooper, asked for the serial number to make sure about the correct stock, so I sent it to them. They replied that they had no record of my rifle! Lol! So I sent a couple pictures and asked what that was all about and was told when they bought the company from Cooper, he didn't transfer all the records of his builds.