Issued by Deutsche Bundespost Berlin in 1970, this commemorative 30 Pfennig stamp honors Leopold von Ranke (1795–1886), the pioneering German historian considered the father of modern source-based history. The design features a detailed portrait of Ranke wearing formal attire with decorations, symbolizing his contributions to academic and cultural life. This issue is part of Germany’s series celebrating prominent historical figures. A fine example of West Berlin’s high-quality portrait commemoratives from the Cold War period, it appeals to collectors of cultural, historical, and German philately.