Struck for Emperor Marcus Aurelius at the Rome Mint.
Dated TR POT XXXIX = Dec 174 to Autumn 175 CE.
RIC 1142 (rated as Scarce), approx. 26mm, 12.94g.
Rarely depicted Tiber River God reverse type.
Certified by NGC to Ch F.
Obverse: M ANTONINVS AVG TR POT XXIX, laureate head of Emperor facing right.
Reverse: IMP VII COS IIII / SC, Tiber, half draped, reclining left on ground, setting right hand on prow of boat, half-seen on left, holding tall reed in left hand and resting left elbow on urn, tilted down to left and issuing water.
Tiberinus is a figure in Roman mythology. He was the god of the Tiber River. He was added to the 3,000 rivers (sons of Oceanus and Tethys), as the genius of the Tiber.