Anonymous 'Large Head'.     AR Quinarius, uncertain Campanian mint (Cales?), 213 BC.   Obv.    Helmeted head of Roma right (splayed visor); behind, X.        Rev.   The Dioscuri galloping right; in linear frame, ROMA.     Cr. 44/6; RRSC Bq 16.     2.33 g.   16 mm.      RR.  Very rare and superb. Well centred on a large flan. Lovely iridescent tone.    Good VF/About EF.