traffic. officers directing traffic. City traffic City traffic--Michigan--Detroit--1920-1930 Traffic police Traffic police--Michigan--Detroit--1920-1930 Walter P. Reuther Library, Archives of Labor and Urban Affairs, Wayne State University Detroit News (Firm) 1928-10 Image photographs tiff wayne:vmc10677 vmc10677 http://digital.library.wayne.edu/item/wayne:vmc10677 http://digital.library.wayne.edu/item/wayne:vmc10677/thumbnail Detroit News Photograph Collection (UAV002691) Virtual Motor City Michigan Detroit 1920-1930 Copyright Walter P. Reuther Library, Archives of Labor and Urban Affairs, Wayne State University