The eagle and the lion are symbols of the Legions V Macedonica and XIII Gemina, which were quartered in Provincia Dacia.
Trajan, 25 January 98 - 8 or 9 August 117 A.D.
In 106 A.D., Trajan besieged Sarmizegetusa, the Dacian capital. With the aid of a Dacian traitor, the Romans found and destroyed water pipes supplying the city. Running out of water and food the city fell and was burned to the ground. Decebalus fled but, followed by the Roman cavalry, committed suicide rather than face capture. The river-god on the reverse is usually described as Tiber, however, the reverse likely personifies the impact of the Roman destruction of the Dacian's water supply. Dacia's own water supply has betrayed her, knocked her to the ground, and is choking her.
SH63939. Orichalcumsestertius, RIC II 556, BMCRE III 793 note, Cohen 526, aF, weight 20.524 g, maximum diameter 32.9 mm, die axis 180o, Rome mint, 103 - 111 A.D.; obverseIMP CAESNERVA TRAIANO AVG GER DAC P M TR PCOS V P P, laureate bust right, slight drapery on far shoulder; reverseS P Q ROPTIMO PRINCIPI S C, River-god, cloak billowing behind, leaning left with right knee on supine Dacia, forcing her to the ground, choking her with his right hand, reeds in left; very scarce; $300.00 (€231.00)