The 7.65mm Roth–Sauer is a centerfire cartridge resembling a shortened

.32 ACP .32 ACP ( Automatic Colt Pistol, also known as .32 Automatic) is a centerfire pistol cartridge. It is a semi-rimmed, straight-walled cartridge developed by firearms designer John Browning, initially for use in the FN M1900 semi-automatic pi ...

. Two self-loading pocket pistols were designed for this cartridge. One was manufactured by Roth-Sauer of

Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...

, and the other by

Frommer Frommer is a surname. Notable people with the surname include: *Arthur Frommer (born 1929), American travel writer *Dario Frommer (born 1963), American politician *Jeremy Frommer, American financier *Nico Frommer (born 1978), German footballer *Pau ...

Hungary Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croatia a ...

. The Roth-Sauer pistol was named for its Austrian patentee

Georg Roth Georg Roth (1 November 1919 – 22 June 2008) was a German conductor and music writer. Life Roth studied piano in Weimar from 1935 to 1940 with Alfred Hoehn and later in Kronberg im Taunus, Hoehn's residence. He was unable to pursue a career as ...

, but was developed by Czech designer . It was produced in small quantities (probably less than 3000) by J P Sauer & Sohn of Suhl in Germany during the early 1900s. It employed a notably complex long-recoil mechanism to fire a unique 7.65 x 13mm cartridge. It bears similarities to other designs by Krnka, the most famous of which was Roth-Steyr adopted for service by the Austro-Hungarian Army. The striker firing mechanism is also of interest, in that it foreshadows the system used in modern double-action striker-fired pistols such as the Glock. The markings on some of the surviving pistols suggest that they were used by the ''Berlin police'' and also ''Landes polizei'' for the German colony of South West Africa.

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Pistol and rifle cartridges {{ammo-stub