Watch List notes:

Anonymous [Crescent]. Ca. 207 B.C. AR denarius (17.4 mm, 3.50 g, 1 h). Rome mint(?). Helmeted head of Roma right; X behind / ROMA in relief in linear frame below, the Dioscuri on horseback riding right, each holding couched spear; crescent above. Crawford 57/2; Sydenham 219; RSC 20i. aVF. 

Ex RBW collection (not in previous sales).