The German economist, professor, and founder of the Institute for World Economy, Bernhard Harms (1876-1939), wrote this treatise as a basis for economic and financial historical studies. The work is structured according to the following points: I. On the history of the Basel coinage in the 11th to 13th centuries. II. The pledge of the episcopal coin to the city. III. The municipal coinage policy. IV. Systematic summary of the most important findings. Unaltered reprint of the original edition from 1907.