Pentagram (second) series. AR Denarius, uncertain mint, c. 206-200 BC. D/ Helmeted head of Roma right; behind, X. R/ The Dioscuri galloping right; below, pentagram. In exergue, ROMA in partial tablet. Cr. 129/1. AR. g. 3.69 mm. 19.50 R. Rare. Lightly toned. VF.