Dated Roman Egypt Alexandria Marcus Aurelius billon tetradrachm, 10.91g.
Minted in the 2nd (denoted by letter B) Alexandrian year of the Emperor = 161/162 CE.
Obverse: draped bust of Marcus Aurelius right.
Reverse: Bust of winged Nike (Victory) facing right. It is believed that the Emperor's wife Faustina Jr. was used as the model for the depiction of Victory.
Certified authentic by NGC to Ch F.