Watch List notes:

Knife (first) series, Denarius, Central Italy (?), ca. 211-208 BC; AR (g 4,34; mm 19; h 12); Helmeted head of Roma r.; behind, X, Rv. Dioscuri galloping r.; below, knife; in ex. ROMA. Crawford 109/1; Sydenham 165.
Rare. Lustrous, struck on a large flan, about extremely fine.; ;