Anonymous [Wheel]. Ca. 209-208 B.C. AR serrate denarius, 19.5 mm, 3.94 g. Rome mint. 

Helmeted head of Roma right, X behind.
ROMA, the Dioscuri on horseback riding right, each holding spear; star above each; wheel below. 

Crawford 79/1; Sydenham 519; RSC 20kk. 

With permission of Agora Auctions - Numismatic Auction 44, Lot 122, Nov 2015.