First results of my PhD project which deals with the circulation of Roman Republican coins in the Imperial period (c. 30 BC – AD 300) will be presented. My study is based on a comparative analysis of the structure of coin hoards from the Roman Empire. The information contained in these hoards is crucial for our understanding of the mechanisms of coin supply, coin circulation and especially the use of Republican coins in the Imperial period. The influence of Imperial coinage reforms on the circulation of Republican denarii is visible, and therefore some of the reasons for the withdrawal from circulation of the bulk of pre-imperial denarii. In short, the study of the circulation patterns of Republican coins from the reign of Augustus onwards revealed some patterns that were expected, but also some new ones. Some of these findings could even be called deviations – hence the title.