Poster showing caricatures of Germans, including wartime scenes of past violence, cruelty, and drunkenness, and then a charming German businessman of the day. Also a vignette of martyr Edith Cavell's grave and the caption, "1914 to 1918. Never again!" British Empire Union. "Once a German, always a German." Remember! Every German employed means a British worker idle. Every German article sold means a British article unsold by David Wilson 1918. Photo by: .