Issued in 1977 by Deutsche Bundespost, this 50 Pfennig commemorative stamp celebrates the 500th anniversary of the University of Mainz (Universität Mainz), one of Germany’s oldest centers of learning, founded in 1477 by Archbishop Diether von Isenburg. The design features the university’s historic seal, showing St. Martin of Tours, the patron saint of Mainz, rendered in deep red and black. The minimalist layout and precise typography emphasize the academic dignity and long scholarly heritage of the institution.