Watch List notes:

M. Fannius C.f., Denarius, Rome, 123 BC; AR (g 3,63; mm 17; h 7); Helmeted head of Roma r.; behind, [ROMA]; before, X, Rv. Victory in biga r., holding reins and wreath; in ex. M FAN C [F]. Crawford 275/1; Fannia 1; Sydenham 419.
Very fine.