National Association of Manufacturer's Billboard in Dubuque, Iowa
National Association of Manufacturer's billboard in Dubuque, Iowa, which says "when wheels go round, the whole town profits". The glass company in the background is Dubuque's largest industry, employing 1,500 men during peak work. From: Photos used in the 1984 Truman Centennial Exhibit. Library of Congress Photo Number: LC-USF34-060470-D.