GR series. AR Denarius, uncertain Spanish mint, 207 BC (?). Obv. Helmeted head of Roma right; behind, X. Rev. The Dioscuri galloping right; below, GR; in exergue, ROMA. Cr. 169/1; B. 1 (Sempronia); RRSC B 91G. 3.93 g. 18.5 mm. RR. A good example for this very rare issue, clearly readable. VF.