Nice commemorative follis minted by Constantius II.
Roman Imperial
Constantius II (337-361), Follis 337-340, Alexandria mint
Obverse: helmeted and cuirassed bust of Roma left
VRBS ROMA
Reverse: She-wolf, standing left, suckling twins, above two stars between S-R, SMALA• in exergue
Diameter 11 mm, weight 1.56 g