Jetons were used as counting tokens and, prior to the 15th century, had been produced in Western Europe, Paris and Tournai. Because of changes in the copper trade in Europe, however, Nuremberg became an important entrepôt for marketing the metal and flourished as a center for jeton manufacture. A representative series of 309 jetons were analyzed by x-ray fluorescence (XRF). The majority were manufactured from brass but a few copper jetons were produced. The trace-element content of the alloy, particularly nickel, correlates with the assumed origins of the raw copper. The changes in the zinc content are related to technological developments in the manufacture of brass. -- AATA