Production stopped when American forces captured the factory in early April, Fritz Walther and his brothers built a new factory in Ulm in the south end of the Western part of Germany and started producing goods in The new factory started to produce the P. The Germans were afraid that markings such as the Walther banner would make it easy for the Allied forces to determine a specific weapons manufacturer and attack the plant. Inthe Walther banner was replaced by a code to indicate the manufacturer. The first weapons were marked with the Walther banner on the slide. How to Identify a Walther P38įritz Walther and Fritz Barthelmes are the two major names involved in the design and development of this pistol. The new pistol was designed at the Walther firearms plant and was called the P. Thirty years later, inthis pistol was replaced by a more cost-efficient and modern 9mm pistol. Inthe German Army introduced the 9mm pistol P.