A World War II German enameled tin plate, a street sign with an SA logo and inscription 1939, Siegen Arbeiten Weitermarschieren, Win Work March On. The Sturmabteilung or SA was the original paramilitary wing of the Nazi Party. It played a significant role in Adolf Hitlers rise to power in the 1920s and 1930s. Second World War Historical Collectables And Memorabilia, Street Signs And Miscellanea.