Interarms Firearms Serial Number Lookup.The other side of the slide has Interarms on it, and the serial number is 01 20780. He lightly ground the rust off and had a friend refinish it, but as to what model it was, I haven't the slightest clue.LSB#: 171104MS44 Make: Interarms, in Alexandria, Virginia Under License of Walther Model: PPK/S Serial Number: W007610 Year of Manufacture: 1998 (per included test target) Caliber.32 ACP Action Type: Double / Single Action, Semi-Automatic, Removable magazine Fed Pistol Markings: The left side of the slide is marked with the Walther “Banner” logo over 'MADE IN USA / UNDER LICENSE OF.
