Nice and quite rare siliqua by Julian II called the Apostat, minted in Arles. The offered siliqua was minted in Arles, then called Constantine (in honor of Constantine I, who made in this Gallic center one of his most important residences) by Julian II, called the Apostate in Christian sources, because being baptized and coming from a Christian family, he returned to the pagan religion. Siliqua was the basic silver denomination in the 4th century, they are definitely rarer than bronze denominations, and they were also quickly devalued by lowering their weight, while maintaining the high quality of silver.
Roman Imperial
Julian II the Apostate (360-363), Siliqua 360-363, Arles mint
Obverse: pearl diademed, draped and cuirassed bust right
D N FL CL IVLIANVS P F AVG
Reverse: wreath with inscription VOT X MVLT XX, TCONST in exerque
Weight 1,72 g.