I was thinking the same thing you were, eightbore about the- all N frames were serial numbered in order, but I couldn't remember for sure. Thanks for the heads up. I have a Model 29-2 that has the serial number N121742 that was shipped to a gunstore in Cincinnati on December 20, 1976 and the box is postmarked January 17, 1977. I bought it in early 1977. Same wooden box that you have, Jagermeister. Good luck. You have a great gun.