 An incendiary bomb had destroyed most of his original factory earlier that year.He brought his family, his technical director Erich Kühnast, his legal adviser Mr. Drechsler and around 20 employees with him, and soon set up shop in an abandoned textile factory.Production continued in Gefell of the microphone models made since the 1930s in Berlin, including the M7 capsule developed by Walter Weber and Hans Joachim von Braunmuhl of the Reichs-Rundfunk-Gesellschaft.