Issued by Deutsche Bundespost in 1977, this 50 Pfennig commemorative stamp celebrates the centenary of the telephone’s introduction in Germany. The design features an early telephone operator in a Prussian-style uniform holding a vintage receiver, with a background showing an early manual switchboard and wall-mounted telephone set. The artwork highlights Germany’s technological progress and the evolution of telecommunications since the 1870s. A fine example of Bundespost’s detailed design work from the 1970s, this stamp honors both the inventor’s ingenuity and the nation’s role in modern communication history.