Roman Republican, Carbo, AR Denarius 21 mm.
121 BC, Rome

Helmeted head of Roma right, curl on left shoulder; X (mark of value) behind 
Jupiter driving galloping quadriga right, hurling thunderbolt and holding sceptre and reins; 
CARB below, ROMA in exergue. 

Crawford 279/1; Sydenham 415; Papiria 7. 3.80g, . 

With permission of Roma Numismatics Ltd - E-Sale 24, Lot 396, Jan 2016