Watch List notes:

Denarius, circa 206-195, AR 3.18 g. Helmeted head of Roma r.; behind, X. Rev. The Dioscuri galloping r.; below, dog r. In exergue, ROMA in linear frame. Sydenham 249. RBW 562. Crawford 122/2.
Rare. Light iridescent tone, minor areas of weakness, otherwise extremely fine

Ex Aes Rude sale 36, 1988, 79.