 Complete the following phrase:  After successful testing in 1840, the Prussian king Friedrich Wilhelm IV ordered 60,000 of the new rifles. Dreyse set up the Dreyse-Zündnadel factory in Sömmerda with the help of state loans to ramp up production. It was accepted for service in 1841 as the leichtes Perkussionsgewehr Model 1841, but only 45,000 had been produced by 1848. It was used in combat for the first time during the German revolutions of 184849 and proved its combat superiority in street fighting during the 