The Bundesbank’s National Analysis Centre in Mainz receives around 30,000 requests every year for the replacement of damaged cash. In order to facilitate reconstruction in cases involving a large number of banknote fragments, the Bundesbank joined forces with the Fraunhofer Institute for Production Systems and Design Technology (Fraunhofer IPK) to develop a digital system for reconstructing badly damaged euro banknotes based on “ePuzzler” technology.