During architectural and archaeological studies conducted in 1983 and 1985 at the site of medieval Ołbin Abbey, located in the Wrocław quarter of Ołbin, eight coins were found; six of them were analysed. These are late medieval and modern coins. All coins were precisely identified and described. Studies of the elemental composition of coins were undertaken with a non-destructive method, using X-ray fluorescence spectrometry. The results of analyses showed that coins were made from an alloy of copper and silver with varied content of main elements.