See Jetzinger, Hitler's Youth. For comparison Jetzinger notes that, during the first five years of service, a teacher earned 66 kronen (about $92 or £33) a month, a post office employee less than 60 kronen (about $84 or £30). See also Werner Maser, "Die Fruhgeschichte der NSDAP. Hitlers Weg bis 1914 "(Frankfurt, 1965).