GOLD COINAGE OF GALLIENUS IN THE BEGINNING OF THE JOINT REIGN WITH VALERIANUS I: NOTES ON A MONETARY MEDALLION FOUND IN TONGOBRIGA

Abstract

It is studied a gold pendant with a Gallienus aureus, dated of the beginning of the joint reign (A.D. 253-54) and found in the area of the roman baths of Tongobriga (Marco de Canaveses, Porto). This medallion is related to others similar pieces coming from the western part of the Roman Empire. It also published a list of die links detected in a set of 26 aurei from public and private collections, that allows a better understanding of the gold coinage at the beginning of the joint reign of Gallienus. Finally, it discusses the archaeological context in which it was lost Tongobriga medallion presumably in the mid-fourth century.