A striking high-value definitive from Deutsche Bundespost Berlin, this 100-Pfennig stamp illustrates the massive Braunkohlenförderbagger, a bucket-wheel excavator used in lignite mining—an icon of German industrial engineering. Issued as part of the long-running Industry & Technology series, the stamp features crisp linework in deep brown, showcasing detailed mechanical structures with impressive precision. A popular issue among collectors of industrial themes, Berlin postal history, and German definitives, this example shows clean perforations and strong color. An excellent addition to any advanced collection.