Otto Eberhardt Patronenfabrik (English: "Otto Eberhardt cartridge factory") was a Nazi Germany

Nazi Germany

Nazi Germany , also known as the Third Reich , but officially called German Reich from 1933 to 1943 and Greater German Reich from 26 June 1943 onward, is the name commonly used to refer to the state of Germany from 1933 to 1945, when it was a totalitarian dictatorship ruled by...

 munitions company. The company's Hirtenberg

Hirtenberg

Hirtenberg is a town of approx. 2,500 inhabitants near Baden bei Wien in Lower Austria, Austria. The river Triesting is located at the south border of the town...

er Patronen Zündhutchen und Metallwarenfabrik (English: "cartridge and metal fabrication in Hirtenberg") near Wiener Neustadt

Wiener Neustadt

-Main sights:* The Late-Romanesque Dom, consecrated in 1279 and cathedral from 1469 to 1785. The choir and transept, in Gothic style, are from the 14th century. In the late 15th century 12 statues of the Apostles were added in the apse, while the bust of Cardinal Melchior Klesl is attributed to...

 (proofmark "am") used forced labor from a sub-camp of the World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

 Mauthausen-Gusen concentration camp

Mauthausen-Gusen concentration camp

Mauthausen Concentration Camp grew to become a large group of Nazi concentration camps that was built around the villages of Mauthausen and Gusen in Upper Austria, roughly east of the city of Linz.Initially a single camp at Mauthausen, it expanded over time and by the summer of 1940, the...

 and produced ammunition including 9×19mm Parabellum (pistol and submachine gun) and 8 mm Mauser (rifle) cartridges. The company also had a factory in Ronsdorf

Ronsdorf

Ronsdorf is a district of the German town Wuppertal. It has population of about 22.500. Ronsdorf was first mentioned in 1494, and in 1745 it received its town character. It was founded only a few years before by Elias Eller when he relocated the Zionites there from Elberfeld...

 near Wuppertal

Wuppertal

Wuppertal is a city in North Rhine-Westphalia, Germany. It is located in and around the Wupper river valley, and is situated east of the city of Düsseldorf and south of the Ruhr area. With a population of approximately 350,000, it is the largest city in the Bergisches Land...

 (proofmark "ap") which produced rifles. Additional Gustloff facilities were in Meinigen,, Wilhelm

Wilhelm

Wilhelm may refer to:* Wilhelm I, German Emperor , King of Prussia and German Emperor* Wilhelm II, German Emperor , grandson of the former, King of Prussia and German Emperor* Wilhelm , a character in Xenosaga...

, and Weimar

Weimar

Weimar is a city in Germany famous for its cultural heritage. It is located in the federal state of Thuringia , north of the Thüringer Wald, east of Erfurt, and southwest of Halle and Leipzig. Its current population is approximately 65,000. The oldest record of the city dates from the year 899...

.

Hirtenberg aircraft

Otto Eberhardt Patronenfabrik also purchased the assets of the Hopfner aircraft company and had continued production of both de Havilland- and Siemens-powered aircraft under the Hirtenberg brand

Hirtenberg HS.9

-References:* The Illustrated Encyclopedia of Aircraft , 1985, Orbis Publishing, Page 2173* A.J.Jackson, British Civil Aircraft since 1919 Volume 3, Putnam & Company, London, 1974, ISBN 370 10014 X, Page 369...

.