On July 28, 2005 a very unusual, didactic, extremely interesting and attractive exhibition called »A brook in the very heart of Zagreb. Following the Medveščak brook from its source to its mouth« was opened at the City of Zagreb Museum. Among the very many exhibits one could also see all coins and medals found there, preserved in the Zagreb Archaeological Museum Numismatic Cabinet (PREMERL 2005: 91, Nos. 1.37– 153). On November 17, 2005. at 7 PMthere was also the book launch of the exhibition catalogue, bearing the same title, written by Nada Premerl. Because a detailed coin catalogue could not be included in this valuable and interesting book, the authors wish to present it here. In 1899 during the construction of an underground canal to d...