QUOTE : When the first women started work in the barracks on 25 August 1942, Siemens & Halske joined three other major German manufacturers- IG Farbe at Auschwitz, Steyr-Daimler-Puch AG at Mauthausen and Heinkel at Sachsenhausen-in using concertation-camp slave labour. So pleased was the company with its new Ravensbruck factory that Rudolf Dingel...wrote to the Reichsfuhrer SS thanking him warmly. Himmler's kindness towards Siemens inspired him with 'particular joy.