Octavian, AR denarius, ca. 30-29 BC, Rome. 

Bare head right.
IMP CAESAR on architrave of the Actian arch, depicted as a single 
span surmounted by a large statue of Octavian in facing triumphal 
quadriga. 

RIC 267; RSC 123; Sear 1558.

With permission of Numismatica Ars Classica - Auction 86, Lot 40,
Oct. 2015.