Trajan AR denarius, Rome. 114-117 AD.

IMP CAES NER TRAIAN OPTIM AVG GERM DAC, laureate, draped 
bust right.
PARTHICO PM TRP COS VI PP SPQR, SALVS AVG in ex., Salus 
seated left by altar, holding patera, feeding snake 
entwined around the altar.

RIC 370.

Courtesy of TimeLine Auctions (www.timelineauctions.com), Feb, 2013