Rick, I also had/have 16,13x and 16,61x. I would assume serial numbers started at 1000. The one in the 18,000's one was my first, I have a note in the records that all numbers matched so I don't think I misread a '3' as an '8' because I looked at the stock & butt plate too - I will try to remember to double check it sometime.

Last edited by GeneB; 03/04/17. Reason: corrected grammer