Issued by Deutsche Bundespost Berlin in 1978, this 90-pfennig stamp depicts the Staatsbibliothek Preußischer Kulturbesitz (State Library of Prussian Cultural Heritage) in the Kulturforum district. The detailed architectural line drawing highlights the modernist structure designed by Hans Scharoun, also known for the Berlin Philharmonie. The stamp celebrates the institution’s role as a guardian of Germany’s vast literary and cultural archives. Its minimalist design and fine technical rendering embody the precision of German philatelic art of the late 1970s.