Trajan (98-117) AR Denarius (Silver, 3.12g, 20mm) Rome.
Obv: IMP TRAIANO AVG GER DAC P M TR P, Laureate bust right, with slight drapery.
Rev: COS V P P S P Q R OPTIMO PRINC, Felicitas standing left, holding winged caduceus and resting arm upon column to right.
Ref: RIC 120.