His ability to produce both the gun and the ammunition for it was followed during his entire career and made him unique in this ability. Paul's first invention was a cannon and its ammunition. Paul was the engineer and designer but Wilhelm took on the task of manager for their interests with the Oberndorf factory. Paul engaged his older brother Wilhelm in working on a new gun system in their spare time after work. By December of 1859 he has so impressed his superiors that he was placed on inactive military service and assigned to the royal factory at Oberndorf. Peter Paul was conscripted in 1859 as an artilleryman at the Ludwigsburg arsenal, where he worked as a gunsmith. A brother, Franz Mauser, traveled to America in 1853 with his sister and worked at E. His brother Wilhelm was four years older. Peter Paul Mauser, often referred to as Paul Mauser, was born on 27 June 1838, in Oberndorf am Neckar, Württemberg. His older brother Wilhelm assumed many of his father's duties as he became ill. Of his seven sons who worked with him there Peter Paul Mauser showed an outstanding ability to develop methods of operation that were faster and more efficient. Andreas Mauser was the master gunsmith there. Originally located partly at Ludwigsburg and partly in Christophsthal, the factory was transferred to Oberndorf in the former Augustine Cloister.