Ancient coin AE, help to ID

Hello experts, 

I am no good with greek and roman coins, it is possible to know who this blob head emperor is?
Thank you for any comment!

Geison

21mm

3.01g

Difficulty level: Very hard.

It's so worn that I don't even know if the things around the figure at reverse are the letters SC or are actually the person's arms.

Yeah, not much visible

Indeed looks like an S C and maybe an X to the right, not sure

I am betting on the effigy

Maybe is some barbaric issue