Trajan, 98 - 117 ADSilver Denarius, Rome Mint, 20mm, 3.18 gramsObverse: IMP TRAIANO AVG GER DAC P M TR P, Laureate bust of Trajan right.Reverse: COS V S P Q R OPTIMO PRINC, Aeternitas standing left holding heads of Sun and Moon, AET AVG across fields.RIC91