GR Series. AR Denarius, uncertain Spanish mint, 207 BC (?). D/ Helmeted head of Roma right; below, X. R/ The Dioscuri galloping right; below, GR; in exergue, ROMA. RRSC B91; Cr. 169/1. 3.93 g. 19 mm. RR. Very rare. Sound metal and almost of full weight. Well centred and choice for issue. About EF.
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