Question: What style of helmet pre-dated the distinctive design used by the German army, a pin of which was given to First World War veterans by the Nazi Party? 
Sentence (from "World War Veterans"): The purposes of the corporation stated at that time included (1) To band together veterans of World War I who have served in any branch of the United States service; (2) To preserve the ideals for which these veterans served; and (3) To aid such veterans to secure adequate employment and to facilitate their return to civilian life.
Relevant evidence: No