This poster was distributed after the war as a warning against the Germans: Once a German – always a German. It discouraged the hiring of Germans as workers and the purchasing of German products. A drawing of the passenger ship Lusitania, which was sunk off the coast of Ireland, is intended as a reminder of German crimes.
British Empire Union post-World War I, poster, 1919, unknown artist; source: United States Library of Congress Prints and Photographs Division, Reproduction Number: LC-USZC4-11170 http://loc.gov/pictures/resource/cph.3g11170/, public domain.