Schweizerische Industrie Gesellschaft
The design was derived from Charles Petter's Modèle 1935A pistol. In 1937, "Schweizerische Industrie Gesellschaft" (SIG) acquired a license for the Petter-Browning system from SACM in order to develop a replacement for the Luger Parabellum 06/29, which had been in service since 1900. Apparently not satisfied with the Petter Browning design or the changes they had made to it, SIG evaluated no less than 11 prototypes from 1942 through 1944. Selbstladepistole Neuhausen model 44/16 pistol production began in 1944. Some of the original Petter Browning features had been retained, specifically the self-contained firing and recoil systems. The Neuhausen 44/16 had a magazine capacity of 16 rounds.