This reference work contains over 8000 graphics of head badges from German bicycle brands. Approximately 8000 brands of German bicycle manufacturers, dealers, and wholesalers from 1817 to around 1980 are listed. This is a lexicon-like reference work that refers to the brand, manufacturer, and (where knowledge is available) additional background information based on the head badge. Additional details such as hole spacing or material provide further identification possibilities. The book serves as a professional chronological classification of historical bicycles and frames and is also a source of information on bicycle brands, bicycle factories, and their associated manufacturers.