Bronze AE3, 19mm, 3.19gm, issued AD 328/329 Siscia mint.
Obv: CONSTANTINVS AVG, Laureate head right.
Rev: PROVIDENTIAE AVGG (ΓSIS in ex.), Camp gate with two turrets, without doors, with five or six stone layers; star above.
References: Sear 16253, RIC 214.
