A mysterious Gallienus bronze coin with SPES PVBLICA reverse


The primary purpose of this paper is to present this well-preserved specimen of this extremely rare coin. And the secondary purpose was to re-open the topic of these unusual issues minted during the joint reign. I hope that this article may generate another wave of investigation and discussion and finally, it will help us to better understand and specify the chronology and the history of Gallienus’ coinage.