Republican, anonymous denarius, Rome, ca 157-156 BC. 16mm, 3.68 g. 

Helmeted head of Roma right, X behind head.
ROMA beneath Victory, holding whip, driving galloping biga right.

Crawford 197/1a; RBW 846; Syd 376; RSC 6; Sear 76.

With permission of Bertolami Fine Arts - ACR Auctions - E-Auction 73, Lot 505, Sept. 2019.