Watch List notes:

Denarius South East Italy circa 211-210, AR 3.41 g. Helmeted head of Roma r.; behind, X. Rev. The Dioscuri galloping r.; below, H and in exergue, ROMA. Sydenham 174. Crawford –. Witschonke NC 2008, pp. 141 -145 and pl. 22.
Of the highest rarity, apparently only the seventh specimen known and only the third
one in private hands. Struck on a very broad flan and very fine

Ex NAC sale 78, 2014, 536.