The plate is the element that from the very beginning identifies a particular vehicle and only that, as if it were its “identity card”; it is the element that distinguishes it from all the others similar, but different precisely because of the plate. With this complete work, Guglielmo Evangelista, Mino Faralli and Nicolò Pertmer guide us on a journey to discover the meaning of the plates, from their origins to the evolution they have undergone over the years, illustrating the modifications and changes they have undergone. It is through the plate of a vehicle that we can retrace its history, know where it was registered, where it was used and who its owners were: a series of fundamental and indispensable data for any collector, restorer and enthusiast of historic vehicles. A unique double manual, also useful for Identification / Identity Certifications, which integrates and intertwines with the history of the engine itself. The plate is not seen only as a fiscal instrument, but is inserted in the various economic, social and political moments of the nation; through the plaques we retrace the changes in the administrative systems, which lead us to discover what happened in some autonomous regions in a certain period of their history. The work consists of a first volume dedicated to civil circulation plates and a second specific volume on special, police and rescue vehicles.