This FEL TEMP has a Chi-Rho on the reverse in the center. It is in rough condition but is actually fairly rare despite the RIC rating of common.
LXXII is the weight standard (72 to a pound) and also appeared on coins from Siscia. These were issued shortly after Constantius II reclaimed Aquileia from Magnentius.
Constantius II
A.D. 352-355
Ӕ nummus 21mm 3.6g
D N CONSTANTIVS P F AVG; pearl diademed, draped & cuirassed bust right.
FEL TEMP REPARATIO; Soldier spearing fallen horseman, LXXII in left field, Chi-Rho in center.
In ex. AQP
RIC VIII Aquileia 195