Hello, (and please ignore the typo in the title) I acquired this coin in a group of authentic AE coins, and have unsuccessfully proven its authenticity (I know very little about silver coins). My cheap scale (without decimal points) provides a weight of 4 grams and it has a diameter of 19mm. Attached are images of the edges as well. Someone told me the portrait looked off, but I still can't come to any conclusions. Any information is greatly appreciated.
I agree with @Victor_Clark My example, different date DOMITIAN AR Denarius OBVERSE: IMP CAES DOMIT AVG GERM P M TR P VIII, laureate head right REVERSE: IMP XIX COS XIIII CENS P P P, Minerva standing left holding spear Struck at Rome, 88-89 AD 3.3g, 19mm RIC 670