This 20-Pfennig commemorative from Germany (Deutsche Bundespost), 1964 honors Ferdinand Lassalle (1825–1864), an influential political theorist and early leader of the German workers’ movement. The design features a stark, modernist portrait in deep blue and black tones, reflecting the graphic style typical of West German issues of the 1960s. Issued for the 100th anniversary of Lassalle’s death, it is part of the long-running series commemorating notable German personalities. A cleanly printed and sharply centered stamp, it appeals strongly to thematic collectors in politics, reform movements, and German history.