This striking 20-Pfennig commemorative from Berlin, Germany (1963) celebrates the Große Deutsche Funkausstellung—the Great German Radio Exhibition, a major event in the history of broadcasting and consumer electronics. The design features the iconic Berlin Bear standing behind the Funkturm (Radio Tower), symbolizing the city’s technological prominence during the early Cold War era. Its crisp geometric artwork, bold blues, and modernist style make it a popular choice for collectors of Berlin issues and thematic technology or architecture. Issued by Deutsche Bundespost Berlin, this stamp represents Berlin’s push toward innovation and international visibility in the 1960s.