I didn't think there was any diff between .380ACP and 9mmKurz...
...This model says on the right: 'Smith & Wesson, Houlton, ME USA' (importers or producers?) on the left side it says: 'Under license of Carl Walther, Waffenfabrik, Ulm, DO, Modell PPK/S Cal 9mm, kurtz/380APC. ...
I sent the S/N, 5 JPG's and S & W & 'Under license of Carl Walther Waffenfabrik, Ulm/Do'
This came back 2-days from mail.smith-wesson.com, "Gazda, Paul"
"That is a U.S. made model, Smith & Wesson Maine plant 02/2003 on the build date."
Took 2 days from following your advice and now turns out that Walther PPK/S-1 is one of my newer weapons build-wize.
WOW, thanks a million for helping to date it for me, it's a newer Yanky model alright.