Trajan AE Sestertius, Rome, AD 115-117.

Obv: IMP CAES NER AVG GER DAC PARTHICO PM TRP COS VI PP, 
laureate and draped bust right, seen from the back. 
Rev: REX PARTHIS DATVS, Trajan seated left on platform, 
presenting Parthamaspates to a kneeling Parthian. 
SC in exergue. 

RIC 667; Cohen 328; BMC 1046; Sear 3191.

With permission of Numismatik Lanz,  Dec 2015