The reconstruction of coin circulation in the city of Rome represents a matter whose boundaries are still rather nebulous and undefined. This book aims at examining the coins of the Julio-Claudian and Flavian period unearthed in Rome, both in the municipal areas and with the excavations of the Governorate, in the late nineteenth and the first half of the twentieth century. These specimens are now available online at www.museicapitolini.net. Complemented with the pieces coming from other sites of the empire’s capital published so far, they have been subsequently compared with the finds from the cities of Latium vetus and Campania, in an effort to outline a picture of the coin circulation in the first century AD in such areas of the Italian peninsula.