I have a (Model 17)? I think. Is there a list of when the gun was manufactured according to the S/N? On the butt of the gun I have is a K 468**. I noticed in the forum, most of the guns have six numbers following the K. Mine has only five. I also noticed that people don't list the entire S/N, so I didn't either. Other than that, it looks just like the Model 17. It is a 22 cal. with a 6 inch barrel. I'd just like to know more about it. It belonged to my Grandfather. Thanks for any help.