C. Terentius Lucanus AR Denarius. Rome, 147 BC. 

Helmeted head of Roma right, crowned by Victory, X behind head.
The Dioscuri galloping right, holding couched spears, a star above each of their heads. C•TER•LVC below, ROMA in exergue. 

Crawford 217/1; BMCRR Rome 775; RSC Terentia 10; Sear 93.

With permission of Numismatica Ars Classica, Auction 78, Lot 565, May 2014.