Roma again 18.5 mm definite silvering [solved]

this coin look bad in picture has silvering on fields,
who this emperor that look like Tomas Jefferson again?

I think it's a coin of Licinius I.

Obverse: IMP LICI─NIVS AVG; bust left
Reverse: IOVI CONS─ERVATORI AVGG; mintmark SMN (Nicomedia)

If you go to this Wildwinds page and search for "bust left" you'll find many examples; look for those with the mintmark SMN.