Rare follis, R2 in the Roman Imperial Coinage catalogue.
Roman Imperial
Arcadius (383-408), Follis 384-387, Siscia mint
Obverse: pearl diademed, draped, cuirassed bust right
D N ARCADIVS P F AVG
Reverse: Victory walking left, holding wreath and palm, ASIS in exerque
VICTORIA AVGGG
Diameter 14 mm, weight 1.60 g