Hans Rudi Erdt (b. 1883, Benediktbeuern, d. 1918, Berlin) was a German graphic designer, lithographer and commercial artist known for his contributions to the Sachplakat movement created by Lucian Bernhard. Erdt’s ad, done for Opel Automobile. I really liked the style and how effective the ad still is without showing the product. Adam Opel AG (Opel) is a German automobile manufacturer headquartered in Rüsselsheim, Hesse, Germany, and a subsidiary of General Motors Company. The company began manufacturing bicycles in 1886 and produced its first automobile in 1899.