Sestertius Commodus?

Diameter: 30mm
Weight: 15,39g

I think it's a sestertius of the emperor Commodus but it's weight is very light, only 15,39g. Any help is very welcome.

Hello,

I think the weight is normal, even if below average, for a Commodus sestertius. The sestertii at that time began to get lighter and lighter. Moreover, yours seems to have lost some bits of metal.

Цитата: "Choucas"​Hello,
​
​I think the weight is normal, even if below average, for a Commodus sestertius. The sestertii at that time began to get lighter and lighter. Moreover, yours seems to have lost some bits of metal.
​

​Thank you!

Is there any chance you recognize the reverse? I can't identify it.

I think I found it, should be Commodus. AE Sestertius. 183 AD. M COMMODVS ANTONINVS AVG PIVS, laureate head right / TR P VIII IMP VI COS IIII P P, S-C, Victory walking left holding trophy in both hands. RIC 375; Cohen 899.