On Walther pistols, the serial number will generally be located on the left-hand side of the slider. These transitional American PPK’s need to be recognized and valued much like P-38 variations, as distinct from the more common serially-numbered German made, Interarms licensed, or S&W manufactured and licensed variations.
Based upon these serial numbers, it is my assumption that PP number 998957 was also produced before the introduction of the suffix feature. Production continued at the Walthers factory until 1945.
It may be on the frame of the gun, above the trigger guard or on the grip. The Walther banner and P38 model indication are stamped on the left side of the slide with the serial number next to it. Most of the serial numbers also have a suffix letter. Gun shows slight rub Also on frame an read more. The goal of every P38 manufacturer was to produce 10.000 P38 pistols every month. In June and July 1940 Walther used the secret code 480. Die Modellbezeichnung PP steht für Polizeipistole. Besides the above PPK serial numbers issued through the RSHA Arsenal to Einsatzgruppen units in 1941, the source of the Red Book material contained small notices of shipment and delivery. It came If you just want an approximate build date, put up up your serial number, to include the suffix if any, and I can go to the forum and look it up for you.